The Cost of Iraq, Afghanistan, and Other
Global War on Terror Operations Since 9/11

Amy Belasco
Specialist in U.S. Defense Policy and Budget
September 2, 2010
Congressional Research Service
7-5700
www.crs.gov
RL33110
CRS Report for Congress
P
repared for Members and Committees of Congress

The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Summary
With the July 27, 2010 enactment of the FY2010 Supplemental Appropriations Act (H.R. 4899/P.L.
111-201) Congress has approved a total of $1.121 trillion for military operations, base security,
reconstruction, foreign aid, embassy costs, and veterans’ health care for the three operations initiated
since the 9/11 attacks: Operation Enduring Freedom (OEF) Afghanistan and other counter terror
operations; Operation Noble Eagle (ONE), providing enhanced security at military bases; and
Operation Iraqi Freedom (OIF).
Of this $1.121 trillion total, CRS estimates that Iraq will receive about $751 billion (67%), OEF $336
billion (30%) and enhanced base security about $29 billion (3%), with about $5 billion that CRS
cannot allocate (1/2%). About 94% of the funds are for DOD, 5% for foreign aid programs and
embassy operations, and 1% for medical care for veterans.
Comparing June of 2009 with June of 2010, average monthly DOD spending for Iraq fell by 25%
from $7.2 billion to $5.4 billion while troop strength dropped by 46%. For Afghanistan, average DOD
spending grew from $3.5 billion to $5.7 billion, a 63% change while troop strength grew by 70%.
Troop levels are expected to fall to 50,000 with the withdrawal in Iraq and to rise to 98,000 with the
additional deployments to Afghanistan by September 2010.
On July 27, 2010, Congress passed H.R. 4899/P.L. 111-212, the FY2010 Supplemental request and
provided an additional $34.4 billion in war funding for DOD and the State Department, largely to
cover the cost of deploying 30,000 additional troops to Afghanistan that President Obama announced
on December 1, 2009 and to ramp up foreign aid levels in both Iraq and Afghanistan..
With passage of the FY2010 supplemental, cumulative war funding totals $1.12 trillion including
$751 billion for Iraq, $336 billion for Afghanistan, and $29 billion for enhanced security. In FY2010,
Afghanistan receives about 60% of the total and Iraq 40%, a reversal of the previous year.
The $171 billion received in FY2010 is the same as the amount requested for FY2011 while average
troop strength for both wars is due to fall from 185,000 to 145,000, a 20% drop. Average strength in
Iraq would fall from 100,000 in FY2010 to 43,000 in FY2011 while strength in Afghanistan would
grow from 84,000 in FY2010 to 98,000 in FY2011. The final withdrawal from Iraq is slated to be
complete by December 2011, the end of the first quarter of FY2012, as required by the U.S.-Iraq
Security Agreement.
If the FY2011 war request is approved, total war-related funding would reach almost $1.3 trillion,
including $802 billion for Iraq, $455 billion for Afghanistan, $29 billion for enhanced security, and $6
billion that cannot be allocated. Of this cumulative total, 62% would be for Iraq, 35% for Afghanistan,
and 2% for enhanced security. Based on previous trends and recent figures, DOD’s FY2011 request
may be overstated.
In a January 2010 update, the Congressional Budget Office projected that additional war costs for
FY2012-FY2020 could range from $274 billion if troop levels fell to 30,000 by early 2013 to $588
billion if troop levels fell to 60,000 by about 2015. Under these CBO projections, funding for Iraq,
Afghanistan and the Global War on Terror could total from about $1.56 trillion to about $1.88 trillion
for FY2001-FY2020 depending on the scenario.

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Contents
Introduction: War Funding to Date .............................................................................................. 1
Total War Funding by Operation ........................................................................................... 1
Total War Funding By Agency .............................................................................................. 4
Ongoing War Cost Issues ............................................................................................................ 4
FY2010 Supplemental and FY2011 War Request .................................................................. 7
Potential Effect on Total War Costs ................................................................................. 8
Potential Issues This Year...................................................................................................... 8
Changing Troop Levels ......................................................................................................... 9
NATO and Afghan Troops............................................................................................. 11
Estimating the Cost of the Iraq and Afghan Wars................................................................. 11
Trends in Overall War Funding ................................................................................................. 12
Trends in Iraq War Funding........................................................................................... 13
Past Trends and Future Costs in Enhanced Security ....................................................... 16
Administration and CBO Projections of Future Costs .......................................................... 17
CBO Projections Based on Two Alternative Scenarios................................................... 17
FY2011 Request May be High in Light of Per Troop Costs........................................................ 19
CBO and DOD Estimating Methods.................................................................................... 19
FY2011 Request Compared to Historical Averages.............................................................. 19
Trends in DOD’s Average Monthly Spending ............................................................................ 22
Iraq Costs Change with Procurement and Troops Levels...................................................... 24
Afghanistan Costs Rise with Troop Levels and Training Efforts .......................................... 26
Funds to Train and Equip Afghan and Iraqi Security Forces................................................. 26
Trends in Funding of Afghan Security Forces ................................................................ 26
Trends in Funding of Iraq Security Forces ..................................................................... 28
Explaining Changes in DOD’s War Costs over Time ................................................................. 28
Military Personnel Cost Is Not main Factor in Increases ...................................................... 29
Operation and Maintenance Costs Grow Faster Than Troop Levels ..................................... 30
Dramatic Growth in Investment Costs Now Moderated ....................................................... 32
Military Construction Grows Rapidly.................................................................................. 34
Special Funds and the Flexibility Issue................................................................................ 35
Short-Term Flexible Accounts ....................................................................................... 35
Special Purpose Accounts ............................................................................................. 36
Questions To Raise About War Funding Issues .......................................................................... 37
Congressional Options to Affect Military Operations................................................................. 37
The Vietnam Experience ..................................................................................................... 38
Recent Restrictions Proposed .............................................................................................. 39
Improving War Cost Estimates and Reporting ........................................................................... 40

Figures
Figure 1. Boots on the Ground in Afghanistan and Iraq, 2001-2010 ........................................... 10

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Tables
Table 1. Estimated War Funding by Operation: FY2001-FY2011 War Request ............................ 3
Table 2. Estimated War Funding by Agency: FY2001-FY2011 War Request................................ 6
Table 3. Estimated War Funding By Operation, Agency and Fiscal Year: FY2001-FY2011
Request .................................................................................................................................. 14
Table 4. Army, Navy, US Marine Corps, and Air Force Annual Operational Costs Per
Troop in Afghanistan and Iraq FY2005-FY2011 Request........................................................ 20
Table 5. DOD’s Obligations by Operation: FY2001- FY2010 to Date ........................................ 23
Table 6. Afghan and Iraq Security Forces Funding: FY2004-FY2011 Request ........................... 27
Table 7. DOD’s War Budget Authority by Title: FY2004-FY2011 Request ................................ 30
Table A-1. Boots on the Ground in Iraq and Afghanistan by Month ........................................... 42
Table B-1. Defense Department, Foreign Operations Funding, and VA Medical Funding
for Iraq, Afghanistan and Other Global War on Terror Activities, FY2001-FY2010
Supplemental ......................................................................................................................... 44

Appendixes
Appendix A. Monthly Boots on the Ground in Iraq and Afghanistan.......................................... 42
Appendix B. War Appropriations by Public Law and Agency .................................................... 44
Appendix C. Estimating War Costs for Iraq and Afghanistan ..................................................... 47
Appendix D. Reset and Higher Force Levels ............................................................................. 48

Contacts
Author Contact Information ...................................................................................................... 53

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Introduction: War Funding to Date
Since the terrorist attacks of September 11, 2001, the United States has initiated three military
operations:
• Operation Enduring Freedom (OEF) covering primarily Afghanistan and other
small Global War on Terror (GWOT) operations ranging from the Philippines to
Djibouti that began immediately after the 9/11 attacks and continues;
• Operation Noble Eagle (ONE) providing enhanced security for U.S. military
bases and other homeland security that was launched in response to the attacks
and continues at a modest level; and
• Operation Iraqi Freedom (OIF) that began in the fall of 2002 with the buildup of
troops for the March 2003 invasion of Iraq, continued with counter-insurgency
and stability operations, and is slated to be renamed Operation New Dawn as
U.S. troops focus on an advisory and assistance role.
In the ninth year of operations since the 9/11 attacks while troops are being withdrawn in Iraq and
increased in Afghanistan, the cost of war continues to be a major issue including the total amount
appropriated, the amount for each operation, average monthly spending rates, and the scope and
duration of future costs. Information on costs is useful to Congress to assess the FY2010
Supplemental for war costs for the Department of Defense (DOD) and State/USAID, FY2011 war
requests, conduct oversight of past war costs, and consider the longer-term costs implications of
the buildup of troops in Afghanistan and potential problems in the withdrawal of U.S. troops from
Iraq. This report analyzes war funding for the Defense Department and tracks funding for USAID
and VA Medical funding.
Total War Funding by Operation
Based on DOD estimates and budget submissions, the cumulative total for funds appropriated
from the 9/11 attacks through the FY2010 Supplemental Appropriations Acts for DOD,
State/USAID and VA for medical costs for the wars in Iraq, Afghanistan and enhanced security is
$1,121 billion including:
• $751 billion for Iraq;
• $336 billion for Afghanistan;
• $29 billion for enhanced security; and
• $6 billion unallocated (see Table 1).1
Of this total, 67% is for Iraq, 30% for Afghanistan, 3% for enhanced security and 1/2%
unallocated. Almost all of the funding for Operation Enduring Freedom (OEF) is for Afghanistan.

1 These totals cover funding provided for DOD, State/USAID and VA Medical through FY2010, with the most recent
enacted being the FY2010 DOD Appropriations Act (H.R. 3326/P.L. 111-118), the FY2010 Consolidated
Appropriations Act (H.R. 3328/P.L. 111-117), and FY2010 Supplemental Appropriations Act (H.R. 4899/P.L. 111-
212).

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

This total includes funding provided in H.R. 4899/P.L. 111-212, the FY2010 Supplemental
Appropriations Act enacted July 29, 2010.2
Some 94% of this funding goes to the Department of Defense (DOD) to cover primarily
incremental war-related costs, that is, costs that are in addition to DOD’s normal peacetime
activities. These costs include:
• military personnel funds to provide special pay for deployed personnel such as
hostile fire or separation pay and to cover the additional cost of activating
reservists, as well pay for expanding the Army and Marine Corps to reduce stress
on troops;
• Operation and Maintenance (O&M) funds to transport troops and their equipment
to Iraq and Afghanistan, conduct military operations, provide in-country support
at bases, and repairing war-worn equipment;
• Procurement funding to cover buying new weapons systems to replace war
losses, and upgrade equipment, pay modernization costs associated with
expanding and changing the structure of the size of the Army and Marine Corps,
• Research, Development, Test & Evaluation costs to develop more effective ways
to combat war threats such as roadside bombs;
• Working Capital Funds to cover expanding the size of inventories of spare parts
and fuel to provide wartime support; and
• Military construction primarily to construct facilities in bases in Iraq or
Afghanistan or neighboring countries.
In addition, the Administration initiated several programs specifically targeted at problems that
developed in the Afghan and Iraq wars:
• Coalition support to cover the logistical costs of allies, primarily Pakistan,
conducting counter-terror operations in support of U.S. efforts;
• Commanders Emergency Response Program (CERP) providing funds to
individual commanders for small reconstruction projects and to pay local militias
in Iraq and Afghanistan to counter insurgent or Taliban groups;
• Afghan Security Forces Fund and the Iraq Security Forces Fund to pay the cost
of training, equipping and expanding the size of the Afghan and Iraqi armies and
police forces; and
• Joint Improvised Explosive Device (IEDs) Defeat Fund to develop, buy, and
deploy new devices to improve force protection for soldiers against roadside
bombs or IEDs.

2 See CRS Report R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs,
coordinated by Amy Belasco.
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Table 1. Estimated War Funding by Operation: FY2001-FY2011 War Request
(CRS estimates in billions of dollars of budget authority)
Cum. Total: FY01-
Operation/
FY01
Cum.
FY11 Including
Source of
and
FY11
Enacted:
Pending FY2011
Funding
FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10
Request
FY01-FY10
Request
Iraq
0
53.0 75.9 85.5 101.6 131.2 142.1 95.5 65.9
51.1
750.8
802.0
Afghanistan
20.8 14.7 14.5 20.0 19.0 39.2 43.5 59.5 104.9
119.4
336.0
455.4
Enhanced
Security
13.0 8.0
3.7 2.1
0.8 .5 .1 .1 .1
.1 28.5
28.6
Unal ocated 0 5.5 0 0 0 0 0 0 0
0
5.5
5.5
Totala
33.8
81.2 94.1 107.6 121.4 170.9 185.7 155.1 171.0
170.7 1,120.8
1,291.5
Annual Change
NA
140%
16%
14%
13%
41%
9%
-16%
10%
0%
NA
NA
Change Since
NA NA 16% 33% 50%
110%
129% 91% 111% 110%
NA
NA
FY03
Sources: Public laws, congressional appropriations reports, Department of Defense data, and CRS estimates. CRS budget authority (BA) totals are higher than DOD
figures because CRS includes al funding provided in supplementals, bridge funds, continuing resolutions, omnibus, consolidated, and baseline appropriations for Iraq,
Afghanistan and other counter-terror operations as wel as transfers from DOD’s baseline funds for GWOT requirements beginning with P.L. 107-38, the first emergency
supplemental after 9/11 through the FY2010 request. CRS cal s Operation Noble Eagle, Enhanced Security because these funds provide higher security at DOD bases,
support combat air patrol, and rebuilt the Pentagon. CRS includes additional $2 billion in BA in FY2003 included by DOD in its tally but not in DFAS obligations; source of
funds unclear. CRS splits the $25 billion provided in the FY2005 Title IX bridge between the $1.8 billion obligated in FY2004 and the remainder available for FY2005; all
those funds are scored as FY2004 because they were available upon enactment in August 2005. CRS estimates for DOD reflect obligations reported in DOD’s Defense
Finance Accounting Service (DFAS) reports, Supplemental & Cost of War Execution Reports and budget justification materials including DOD, FY2007 Supp, February 2007,
Table 1a.; http://www.dod.mil/comptroller/defbudget/fy2008/fy2007_supplemental/FY2007_Emergency_Supplemental_Request_for_the_GWOT.pdf; DOD, FY2008
Supplemental Requests, February, July, and October 2007, and DOD, Overseas Contingency Operations Request, FY2009 Supplemental: Summary Justification Material, April
2009, p. 81 and other data; http://www.defenselink.mil/comptroller/defbudget/fy2009/Supplemental/FY2009_Supplemental_Request/pdfs/
FY_2009_Supplemental_Request_04-08-09.pdf. CRS excludes items that are clearly not war-related including for example,$5.2 billion in FY2007 and $8.0 billion in FY2008,
for example, for higher fuel prices for DOD’s regular program, base closure funding, and childcare centers, hospitals, medical facilities, and Army barracks renovation funds
in the United States. Foreign operations figures include monies for reconstruction, development and humanitarian aid, embassy operations, counter narcotics, initial training
of the Afghan and Iraqi army, foreign military sales credits, and Economic Support Funds. See also CRS Report R40699, Afghanistan: U.S. Foreign Assistance, by Curt Tarnoff.
Updates of foreign aid from State Department, U.S. Foreign Assistance, Congressional Budget Justification: Foreign Operations, Summary Tables, Fiscal Year 2010, May 28,
2009; http://www.state.gov/documents/organization/124295.pdf, and FY2011 budget justification. Updates of diplomatic operations provided by State Department. Updates
for VA Medical reflect CRS estimates of shares for OIF and OEF veterans based on applying troop shares to totals shown in Department of Veterans Affairs, FY2010 budget
justification materials; http://www.va.gov/budget/summary/2010/index.htm. Updated to reflect enactment of FY2010 Supplemental (H.R. 4899/P.L. 111-212), 7-27-10.
Notes: NA = not applicable. Totals may not add due to rounding.
a. Total includes $5.5 billion in FY2003 of DOD funds that cannot be allocated between Iraq and Afghanistan because DOD records are incomplete.
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Most war funds were provided in either supplemental appropriations enacted after the fiscal year
has begun and in bridge funds included in DOD’s regular appropriations acts to cover war costs
before supplementals are requested. In both cases, Congress generally designated DOD’s war
appropriations as emergency funding or designated for “overseas contingency operations,” which
exempts these funds from the caps and budget rules that limit overall funding for discretionary
spending.
Total War Funding By Agency
Of the $1.121 trillion enacted thus far, about $1.1 trillion, the lion’s share or 94%, goes to the
Department of Defense. Another $59 billion, or 5%, went to State/USAID, and $6 billion or $1%
to the for OEF and OIF veterans using the Medical Program in the Department of Veterans
Affairs (VA) (see Table 2).
DOD war costs reflect incremental war costs, in other words, costs that are in addition to regular
military salaries, training and support activities, and weapons procurement, RDT&E or military
construction as described above, as well as new war-related programs such as coalition support or
the Commanders Emergency Response Program designed to meet specific war needs. Allocations
between Iraq and Afghanistan reflect DOD estimates, DOD war cost reporting, or CRS estimates
based on other data.
State/USAID figures reflect the cost of reconstruction, foreign aid programs, and embassy
operation and construction costs in Iraq and Afghanistan included in both regular, omnibus,
consolidated and supplemental appropriations acts. 3 The State Department and Congress
generally designate the amount of funding for each country in either budget justification materials
or congressional report language.
The VA separately tracks the amount spent on OEF and OIF veterans in its medical program and
CRS estimates the split based on troop levels in each country. Veterans of both the Afghan and
Iraq wars also collect VA disability benefits but figures have not been published on the amounts
attributable to these veterans.
Over 90% of DOD’s funds were provided as emergency funds in supplemental or additional
appropriations; the remainder were provided in regular defense bills or in transfers from regular
appropriations. Emergency funding is exempt from ceilings applying to discretionary spending in
Congress’s annual budget resolutions. Some Members have argued that continuing to fund
ongoing operations in supplementals reduces congressional oversight. Generally, more of foreign
and diplomatic funding has been funded in regular rather than emergency appropriations.
Ongoing War Cost Issues
This report is designed to answer frequently asked questions and to provide information that can
be used to address some of the major war cost issues that confront the 111th Congress.

3 Foreign operations activities are managed by both the State Department and USAID, which handles most U.S.
development assistance programs.
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In addition to total costs to date for each war and altogether, other questions include:
• How and why have war costs for each war changed over time?
• What are current and likely future war costs, based on current Administration
plans, and how might those costs change under different scenarios?
This information can be used to address policy issues such as how Congress participates in setting
troop levels, measuring the effectiveness of U.S. policies, delineating basing plans, and ensuring
contractor oversight.
Specific cost-related policy issues include:
• What have been the cost and effectiveness of training Afghan and Iraqi security
forces so that they can take over their own defense and what are the prospects for
future costs?
• What types of funding are appropriately related to the Afghan and Iraq wars, and
what types of costs are more appropriately part of DOD’s baseline preparing for
counter-insurgency missions?
• How, if at all, have war funds provided for DOD”s replacement and upgrading of
war-worn equipment contributed to DOD’s ongoing modernization, and affected
current requests?
How much is being spent on funding for bases in Afghanistan and does this reflect the
congressional prohibition of permanent bases?
Additional CRS Reports
For more information about foreign assistance programs for Iraq and Afghanistan, see CRS Report RL31833, Iraq:
Reconstruction Assistance, by Curt Tarnoff, and CRS Report R40699, Afghanistan: U.S. Foreign Assistance, by Curt
Tarnoff. For political-military developments in both countries, see CRS Report RL31339, Iraq: Post-Saddam Governance
and Security, by Kenneth Katzman and CRS Report RL30588, Afghanistan: Post-Taliban Governance, Security, and U.S.
Policy, by Kenneth Katzman. For the FY2010 Supplemental, see CRS Report R41232, FY2010 Supplemental for Wars,
Disaster Assistance, Haiti Relief, and Other Programs, coordinated by Amy Belasco.
For DOD’s FY2011 request, see CRS Report R41254, Defense: FY2011 Authorization and Appropriations, coordinated
by Pat Towell. For more on the FY2011 foreign assistance request, see CRS Report R41228, State, Foreign Operations,
and Related Programs: FY2011 Budget and Appropriations, by Marian Leonardo Lawson, Susan B. Epstein, and Kennon H.
Nakamura.

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Table 2. Estimated War Funding by Agency: FY2001-FY2011 War Request
(CRS estimates in billions of dollars of budget authority)
Cum. Total:
FY01-FY11
Cum.
Including
FY01
Enacted:
Pending
and
FY10
FY2011
FY01-
FY2011
FY06
FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09

Enacted
Request
FY10
Request
DOD
33.0 77.4 72.4 102.6 116.8 164.9
179.2 148.3 160.8 159.4
1,055.5 1,215.0
State/USAID 0.8 3.7
21.7 4.8 4.3 5.0
5.4 5.3 8.2 8.7
59.2 67.9
VA
Medical 0.0 0.0
0.0 0.2 0.4 1.0
1.0 1.5 2.0 2.6
6.1 8.6
Total 33.8
81.2
94.1
107.6
121.4
170.9
185.7
155.1
171.0
170.7
1,120.8
1,291.5
Source: Public laws, congressional appropriations reports, Department of Defense data, and CRS estimates; see Table 1 for list of sources. Updated to reflect enactment
of FY2010 Supplemental (H.R. 4899/P.L. 111-212), 7-27-10.
Notes: NA = not applicable. Totals may not add due to rounding. CRS estimates based on sources listed in Table 1.

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FY2010 Supplemental and FY2011 War Request
In February 2010, the Administration requested $35.1 billion in supplemental funds for DOD and
State/USAID to pay for the cost of the December 2009 decision by President Obama to deploy an
additional 30,000 troops to Afghanistan, bringing total troop levels there to 98,000 by the fall of
2010.4 A FY2010 supplemental is necessary because the decision to add troops was made in
December 2009 after the Administration submitted its regular request in May 2009.
The December 2009 decision to add more troops in Afghanistan was designed to reverse the
deteriorating security situation and “break the Taliban’s momentum” by targeting the insurgency,
securing key population centers, and training more Afghan forces.”5
With approval of the FY2010 supplemental (H.R. 4899/P.L. 111-212), war funding in FY2010
totals $171.0 billion, including $160.8 billion for DOD, $8.2 billion for Foreign and Diplomatic
operations, and $2.0 billion for VA Medical. This level is $16 billion above the FY2009 total (see
Table 1). Although both the House and Senate made specific adjustments to the request, the total
amount is close to the Administration’s request. The Senate passed its version of the FY2010
Supplemental with war funding in H.R. 4899 on May 27th, and the House adopted the same
version on July 27th, 2010.6
The Administration also submitted its FY2011 war request this February, along with the regular
budget. For FY2011, the Administration has requested $170.7 billion, the same total as in
FY2010, including $159.4 billion for DOD, $8.7 billion for State/USAID and $2.6 billion for VA
Medical. Congress is currently considering this request in the FY2011 National Defense
Authorization Act (H.R. 5136/S. 3454), and is likely to include war funding in the FY2011 DOD
Appropriations bill, which has not yet been reported.7
While total war costs for FY2010 and FY2011 are the same, average troop strength for both wars
is projected to fall from 184,000 in FY2010 to 145,000 in FY2011, a decrease of about 20%. That
total reflects the planned decrease in Iraq from 100,000 in FY2010 to 43,000 in FY2011 and the
increase in Afghanistan from 84,000 in FY2010 to 102,000 in FY2011 as the additional 30,000
troops are deployed this year plus an addition of 4,000 support troops in FY2011.8

4 The White House, “Remarks by the President in Address to the Nation on the Way Forward in Afghanistan and
Pakistan,” Delivered at West Point, December 1, 2009; http://www.whitehouse.gov/the-press-office/remarks-president-
address-nation-way-forward-afghanistan-and-pakistan. In the President’s speech, the additional troops were to be
deployed in the first half of the year, but more recently, the Defense Department has estimated that all 30,000 troops
will not be deployed until September 2010.
5 The White House, “Remarks by the President in Address to the Nation on the Way Forward in Afghanistan and
Pakistan,” Delivered at West Point, December 1, 2009; http://www.whitehouse.gov/the-press-office/remarks-president-
address-nation-way-forward-afghanistan-and-pakistan. In the President’s speech, the additional troops were to be
deployed in the first half of the year, but more recently, the Defense Department has estimated that all 30,000 troops
will not be deployed until September 2010.
6 See CRS Report R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs,
coordinated by Amy Belasco.
7 See CRS Report R41254, Defense: FY2011 Authorization and Appropriations, coordinated by Pat Towell.
8 See Figure 6-2 in DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/
fy2011/FY2011_Budget_Request_Overview_Book.pdf.

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Potential Effect on Total War Costs
The FY2010 and FY2011 war requests reflect the shift in costs to Afghanistan as troop levels
grow there and fall in Iraq. In FY2010, Afghan war costs account for 61% of war costs and Iraq
39%, a reversal of the previous year. In FY2010, the $105 billion cost for Afghanistan is a 75%
increase from FY2009, and an increase of 140% compared to FY2008. That same year, the cost
for Iraq drops by about one-third from $96 billion to $66 billion (see Table 1).
With approval of the FY2010 supplemental, cumulative appropriations for the Afghan and Iraq
wars reach $1.121 trillion dollars, including $751 billion for Iraq, $336 billion for Afghanistan,
$29 billion for enhanced security and $6 billion unallocated. Of that total, $1.056 trillion goes to
DOD, $59 billion to State/USAID, and $6 billion to VA.
If Congress also approves the FY2011 war funding request of $171 billion, cumulative war
funding would then reach $1.292 trillion total including:
• $802 billion for Iraq (62%);
• $455 billion for Afghanistan (35%);
• $29 billion for enhanced security (2%); and
• $6 billion unallocated DOD costs (1/2%) (see Table 1)
Potential Issues This Year
Members may raise several issues in DOD’s FY2010 Supplemental and the FY2011 war requests
including:
• the achievability of current plans to accelerate the training and expansion of
Afghan security forces and increase spending steeply to $9.2 billion in FY2010
(a 63% increase), and $11.6 billion in FY2011, in light of shortages of trainers
and other problems such as extensive corruption (see Table 6);9
• whether DOD’s estimates of operating costs in Afghanistan are too high in light
of recent experience;10
• whether FY2011 funding assuming 102,000 troops in Afghanistan for the year is
appropriate in light of the President’s commitment to begin the withdrawal of
U.S. troops in June 2011;
• whether setting a timeline in Afghanistan is appropriate; and
• whether more of DOD’s war costs should be considered longer-term costs that
would more appropriately be part of DOD’s base budget funding, an issue raised
by Secretary Gates.

9 For additional discussion, see CRS Report R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief,
and Other Programs
, coordinated by Amy Belasco.
10 Ibid.
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These issues are also discussed in CRS Report FY2010 Supplemental for Wars, Disaster
Assistance, Haiti Relief, and Court Cases
, coordinated by Amy Belasco; http://www.crs.gov/
ReportPDF/R41232.pdf.
Changing Troop Levels
One of the key factors in driving costs in the Afghan and Iraq wars are changes in troop levels.
Until 2009, troop levels in Iraq were the driving factor, peaking in November 2007 during the
troop surge launched by President Bush while troop levels in Afghanistan remained relatively
stable (see Figure 1 and Appendix A).11
During 2009, troop levels declined gradually in Iraq while troop levels rose steadily in
Afghanistan, growing from about 33,000 in January 2009 to about 45,000 in June 2009 (see
Figure 1 and Appendix A). These initial increases in Afghanistan reflected a decision made by
President Bush before leaving office to increase the number of troops in Afghanistan by about
14,000 in response to concerns about the deteriorating security situation raised by the U.S.
Commander in theater.12
In March 2009, shortly after President Obama took office, the Administration conducted a strategy
review of both the Afghan and the Iraq wars. After that review, the President decided to shift forces
in Iraq from a combat to an advisory and assistance mission, reduce troop levels from 140,000 in
February 2009 to 50,000 by September 2010, and withdraw with all troops out by December 31,
2011 to comply with the U.S-Iraq Security Agreement reached at the end of the Bush
Administration.13
At that time, the President approved an increase of about 22,000 troops for the Afghan war, in
addition to the Bush increases already underway, bringing the total to 68,000 by November 2009. 14
In response to the Administration’s request, Congress approved $128.8 billion in war funding for
Iraq and Afghanistan in the FY2010 DOD Appropriations Act (P.L. 111-118, enacted December
19, 2009).
In December 2009, after a second review in response to further pressures from military
commanders for additional troops continuing to cite worsening security, President Obama approved
an additional increase of 30,000 troops bringing the total number of U.S. total to 98,000 by this

11 For other ways to analyze troop levels, see CRS Report R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-
FY2012: Cost and Other Potential Issues
, by Amy Belasco.
12 See discussion in war funding section of CRS Report R40567, Defense: FY2010 Authorization and Appropriations,
coordinated by Pat Towell; DOD, “Boots on the Ground Report,” May 1, 2009 show a total of 45,000. See CRS Report
R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-FY2012: Cost and Other Potential Issues, by Amy
Belasco and Senate Armed Services Committee, Transcript, “Hearing on Nominations of Admiral Mullen for
Reappointment to the Grade of Admiral and Reappointment as chairman of the Joint Chiefs of Staff,j” September 15,
2009, p. 6. See also the White House, “Remarks by the President in Address to the Nation on the Way Forward in
Afghanistan and Pakistan,” Delivered at West Point, December 1, 2009; http://www.whitehouse.gov/the-press-office/
remarks-president-address-nation-way-forward-afghanistan-and-pakistan.
13 See discussion in war funding section of CRS Report R40567, Defense: FY2010 Authorization and Appropriations,
coordinated by Pat Towell.
14 Washington Post, “Iraq exit will be on time, Biden says; U.S. expects to leave despite violence and political
disarray,” May 27, 2010.
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fall.15 The FY2011 budget adds another 4,000 support troops in Afghanistan. 16 Thus, President
Obama has approved the deployment of from 56,000 to 60,000 additional troops for Afghanistan by
FY2011 (see Figure 1 and Appendix A).
Figure 1. Boots on the Ground in Afghanistan and Iraq, 2001-2010

Source: DOD, Boots on the Ground Reports to Congress; CRS Report RL30588, Afghanistan: Post-Taliban
Governance, Security, and U.S. Policy, by Kenneth Katzman; CRS Report RL31339, Iraq: Post-Saddam Governance and
Security, by Kenneth Katzman; CRS Report RL34387, Operation Iraqi Freedom: Strategies, Approaches, Results, and
Issues for Congress, by Catherine Dale; CRS Report R40156, War in Afghanistan: Strategy, Military Operations, and
Issues for Congress, by Steve Bowman and Catherine Dale.
Notes: Actuals through May 2010; CRS estimates for June-September 2010. Figure design by Amber Wilhelm,
CRS Graphics.
These new requests reversed the 8% decline in war costs in FY2009 when total troop levels fell
from the earlier peak due to the Iraq surege. In FY2010, additional troops in Afghanistan offset
ongoing withdrawals form Iraq, with average troop strength remaining at about 185,000 in both
FY2009 and FY2010. Only in FY2011 does average strength fall by 20% to 145,000 as the

15 DOD, “Press Conference with Secretary of Defense Gates,” December 14, 2009; http://www.defenselink.mil/
transcripts/transcript.aspx?transcriptid=4333. The 21,000 increase was funded in the FY2009 Supplemental and the
FY2010 DOD Appropriations Act (Title IX, P.L. 111-118, enacted December 16, 2009).
16 Then-President Bush increased troops in Afghanistan by about 15,000. For FY2011 increase, see Figure 6-2, DOD,
FY2011 Budget Request: Overview, February 1, 2010; http://comptroller.defense.gov/defbudget/fy2011/
FY2011_Budget_Request_Overview_Book.pdf.
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withdrawal in Iraq accelerates and troop strength in Afghanistan levels off (see Figure 1 and
Appendix A).
As of June, 2010, the number of troops in Afghanistan exceeded the number in Iraq for the first
time, 94,000 compared to 92,000. By September 2010, President Obama’s plans call for the
number of troops in Afghanistan to reach 98,000 while troop levels fall to 450,000 in Iraq, a level
recently reached.17 DOD’s estimate for average strength in Afghanistan in FY2011 is 102,000,
including slightly more than the 10% increase to the 30,000 troop level that Secretary Gates was
allowed accommodate additional support troops.18
For Afghanistan, President Obama is committed to evaluate current U.S. strategy in Afghanistan
in December 2010 to “allow us to begin the transfer of our forces out of Afghanistan in July of
2011,” about three-quarters of the way through FY201119 The extent and pace of decreases in
U.S. troop levels in Afghanistan is not yet defined.
NATO and Afghan Troops
In addition to U.S. troops, NATO nations contributed about 41,000 troops as of June 2010,
bringing the total foreign troops in Afghanistan to about 139,000.20 While U.S. troop levels will
more than treble between September 2008 and 2010, NATO troop levels have grown by about
one-third – from about 30,000 to 41,000 in July 2010.21 The United States has called on NATO
partners to increase their contributions to troop levels, particularly for trainers of Afghan forces,
but with limited success. By October 2010, plans call for Afghan security forces to reach 243,000,
bringing the total number of foreign and Afghan forces to 382,000.22
Estimating the Cost of the Iraq and Afghan Wars
Since the 9/11 attacks and particularly since the beginning of the Iraq war, Congress has been
interested in the allocation of supplemental emergency funds between Afghanistan and Iraq.
Congress does not, however, appropriate funds to DOD by individual operation. Rather,
appropriations are provided to cover particular types of expenses, e.g., special combat pay for
military personnel, the cost of supporting deployed troops in Operation and Maintenance (O&M),
as well as war-related investment costs in Procurement, Research, Development, Test &
Evaluation (RDT&E), and Military Construction.

17 Some press accounts suggest the number could reach 105,000; see New York Times, “Setbacks Cloud U.S. Plans To
Get Out Of Afghanistan;” June 15, 2010; New York Times, “Afghanistan Strategy Shifts To Focus On Civilian Effort,”
June 9, 2010.
18 See Figure 6-2, DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/
fy2011/FY2011_Budget_Request_Overview_Book.pdf.
19 The White House, “Remarks by the President in Address to the Nation on the Way Forward in Afghanistan and
Pakistan,” Delivered at West Point, December 1, 2009; http://www.whitehouse.gov/the-press-office/remarks-president-
address-nation-way-forward-afghanistan-and-pakistan.
20 CRS calculations based on DoD, ”Boots on the Ground” reports and International Security Assistance Force, “Facts
and Figures,” June 10, 2010 and September 1, 2008; http://www.nato/int/isaf/docu/epub/pdf/placement.pdf.
21 CRS calculations based on International Security Assistance Force, “Facts and Figures,” July 6, 2010 and September
1, 2008; http://www.nato.int/isaf/docu/epub/pdf/placemat.pdf.
22 Figure 6-3, DOD, FY2011 Budget Request: Overview, February 1, 2010; http://comptroller.defense.gov/defbudget/
fy2011/FY2011_Budget_Request_Overview_Book.pdf.
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CRS has split DOD funds based on DOD’s Cost of War reports which capture obligations for
each operation, by DOD estimates in budget requests, and other factors. After funds are
appropriated, CRS re-estimates the allocation of DOD funds, excluding items in supplementals
that are not war-related (e.g. barracks renovations, childcare centers, see Appendix C for
methodology.)
CRS uses report language and budget justification materials to allocate State Department and
USAID funding for Iraq and Afghanistan for individual foreign aid programs and diplomatic
operations. For VA Medical costs, CRS allocates VA estimates for medical care for veterans of
both wars, based on data on troops deployed.
Table 3 shows funding by operation and agency. This funding has been provided in regular
appropriation acts for individual agencies, consolidated or omnibus appropriations act, and
supplemental appropriation acts. For a breakdown by public law and by agency, see Appendix B.
Trends in Overall War Funding
From the time of the 9/11 attacks until FY2008, total war costs for all three operations – Iraq,
Afghanistan, and other GWOT and enhanced security – rose steeply primarily because of the war
in Iraq. Annual war appropriations more than doubled from about $34 billion in FY2001/FY2002
to $81 billion for the preparation and invasion of Iraq in FY2003. By FY2007, annual
appropriations for both wars doubled again to $170 billion, and peaked in FY2008 at $186 billion
(see Table 3).
In FY2009, overall war funding fell to $155 billion, reflecting the decline in troop levels in Iraq
after the troop surge, and the beginning of troop withdrawals. Since FY2009, war costs are again
growing, driven primarily by the commitment of the Obama Administration to higher troop levels
as well as higher foreign aid commitments for the Afghan war, which have offset decreases in the
costs of Iraq as U.S. troop levels there decline.
In FY2010, for example, annual funding increases by 10% to $171 billion. The FY2011 request
would maintain funding at $171 billion despite the overall 20% decrease in troop levels as the
U.S. withdrawal from Iraq accelerates with all slated to be out of Iraq by December 31, 2011, the
end of the first quarter of FY2012. In recent years, the cost of enhanced security in the United
States particularly the initial responses to the 9/11 attacks, has had little effect on war costs.
Except for a one-time appropriation of $20 billion for Iraq reconstruction in FY2004, foreign aid
an diplomatic operations funding has hovered between $4 billion and $5 billion until FY2010.
For FY2010 and FY2011, funding is much higher – $8.2 billion in FY2010 and $8.7 billion in
FY2011, reflecting the Administration’s new emphasis on civilian aid programs.
DOD funding has grown far more rapidly than would be expected based on changes in troop
levels or intensity of operations. Instead, much of the increase reflects other factors discussed
below – higher than anticipated support costs, an expanded definition of war-related procurement,
and the growth of programs to meet specific needs, such as training Afghan and Iraqi security
forces.
Although DOD has provided the standard budget justification materials for its war requests since
FY2007, funding in the requests are not split by operation making it difficult to see what DOD
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assumes about how changes in force levels for each war affect costs, a factor of ever more
importance as troop levels grow in Afghanistan and fall in Iraq. In fact, DOD’s requests in
FY2010 and FY2011 include only one table showing the overall split in funding between the two
wars.23 After the fact, war obligations are reported separately for Iraq and Afghanistan, which can
be used to estimate how funding could change with troop strength. DOD justification materials do
not provide explanations of why war funding changes in each war.
Trends in Iraq War Funding
Total war funding for Iraq rose sharply after initial war preparations in the fall of 2002 to $53
billion in the invasion year of 2003, almost trebling to $131 billion in FY2007, and peaking at
$142 billion during the surge in FY2008.24
With the adoption of a withdrawal plan by President Obama in February 2009, total war costs for
Iraq have begun to decline, dropping to $96 billion in FY2009 to $66 billion in FY2010 and $51
billion in FY2011 when troop levels drop to 43,000. In FY2012, costs are likely to be
substantially less was the U.S. withdrawal is completed (see Table 3).
Except for some $2 billion to $3 billion for State/USAID programs (with the exception of the $20
billion in reconstruction provided in FY2004), DOD costs account for most of war funding. With
the Administration’s plan for foreign aid programs to pick up as U.S. troops withdraw, those
State/USAID funding is slated to grow to $3.7 billion in FY2010 and $3.9 billion in FY2011
(Table 3).
Much of the large increases between FY2006 and FY2008 was due to higher procurement
funding, that, in turn, reflects primarily an expansive definition adopted by the Bush
Administration of the amounts needed to reset or reconstitute units returning from deployments,
that included not only repairing and replacing war damaged equipment but also upgrading
equipment to meet future needs for the “long war on terror” (see below and Appendix D).25
In addition, DOD requested and Congress provided substantial funding for force protection gear
and equipment and converting units to modular configurations as well as funding to train and
equip Iraqi security forces, areas influenced by DOD policy decisions rather than troop levels.


23 See Table 8-4 in DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/
fy2011/FY2011_Budget_Request_Overview_Book.pdf.
24 Initial funding was presumably drawn from DOD’s regular appropriations since supplemental funds were not
available.
25 See CRS, Testimony of Amy Belasco to House Budget Committee, “the Growing Cost of the Iraq War,” October 24,
2007.
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Table 3. Estimated War Funding By Operation, Agency and Fiscal Year: FY2001-FY2011 Request
(CRS estimates in billions of budget authority)
Cumulative
Cum.
Total:
FY01
Enacted:
FY01-FY10
Operation and
and
FY2011
FY01-
Including
Source of Funding
FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10
Request
FY10
Request
IRAQ
Department of
Defense
0 50.0 56.4 83.4 98.1 127.2 138.5 92.0 61.1 45.8 706.7
752.5
State/USAID
0 3.0 19.5 2.0
3.2 3.2 2.7
2.2 3.3 3.9 39.0
43.0
VA
Medical
0 0 0 0.2
0.4 0.9 0.9
1.2 1.5 1.4
5.1
6.5
Total:
Iraq
0
53.0 75.9 85.5 101.6 131.2 142.1 95.5 65.9
51.1
750.8
802.0
AFGHANISTAN
Department of
Defense
20.0 14.0 12.4 17.2 17.9 37.2 40.6 56.1 99.5 113.5 314.8
428.4
State/USAID

0.8 0.7 2.2 2.8
1.1 1.9 2.7
3.1 4.9 4.6 20.2
24.9
VA
Medical
0 0 0 0 0 0.1
0.1
0.2 .5 1.2 1.0 2.1
Total:
Afghanistan
20.8 14.7 14.5 20.0 19.0 39.2 43.5 59.5 104.9 119.4 336.0
455.4
ENHANCED SECURITY
Department of
Defense
13.0 8.0 3.7 2.1
0.8 0.5 0.1
0.1 0.1 0.1 28.5
28.6
Total: Enhanced
Security
13.0 8.0 3.7 2.1
0.8 0.5 0.1
0.1 0.1 0.1 28.5
28.6
CRS-14


Cumulative
Cum.
Total:
FY01
Enacted:
FY01-FY10
Operation and
and
FY2011
FY01-
Including
Source of Funding
FY02 FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10
Request
FY10
Request
UNALLOCATED
DOD:
Unallocated
0.0
5.5 0 0 0 0 0 0 0 0
5.5 5.5
ALL MISSIONS
Department of
Defense
33.0 77.4 72.4 102.6 116.8 164.9 179.2 148.3 160.8 159.4 1,055.5 1,215.0
State/USAID

0.8 3.7 21.7 4.8
4.3 5.0 5.4
5.3 8.2 8.7 59.2 67.9
VA
Medical
0 0 0 0.2
0.4 1.0 1.0
1.5 2.0 2.6 6.1 8.6
Total:
All
Missions 33.8 81.2 94.1 107.6 121.4 170.9 185.7 155.1 171.0 170.7 1,120.8 1,291.5
Sources: Public laws, congressional appropriations reports, Department of Defense data, and CRS estimates; see Table 1 or list of sources. Updated to reflect passage of
FY2010 Supplemental, H.R. 4899/P.L. 111-212. 7-27-10.
Notes: NA = not applicable. Totals may not add due to rounding. CRS estimates based on sources listed in Table 1. Updated to reflect enactment of the FY2010
Supplemental (H.R. 4899/P.L. 111-212) on July 29, 2010.

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Trends in Afghan War Funding
The cost of the Afghan war has risen dramatically since FY2006, as troop levels and the intensity
of conflict has grown, increasing from $19 billion in FY2006 to $60 billion in FY2009. Assuming
Administration requests are approved, total war funding will rise to $105 billion in FY2010 and
$119 billion in FY2011 (see Table 3).
After hovering around $15 billion in FY2003 and FY2004, total war costs for Afghanistan grew
to about $20 billion in FY2005 and FY2006, with troop levels hovering around 20,000 Funding
then doubled to $39 billion in FY2007, and $44 billion in FY2008, as troop levels increased to
over 30,000 and the intensity of conflict grew (see Table 3 and Figure 1).
Since then, costs have increased sharply to $60 billion in FY2009, and $105 billion in FY2010
assuming the pending supplemental is approved, and $119 billion in the FY2011 request. Until
FY2010, State/USAID costs accounted for about $2 billion to $3 billion of that total, but doubled
to $5.2 billion in FY2010 and $4.6 billion in FY2011 assuming the requests are approved. VA
Medical costs have also been small but are now expected to double in FY2010 and double again
in FY2011 to $1.2 billion (see Table 3).
Cost increases reflect not only higher troop levels and more intense operations but also substantial
increases in amounts to train of Afghan forces, additional procurement costs, and in FY2010 and
FY2011 higher foreign aid levels. Costs per troop in Afghanistan are also considerably higher
than in Iraq, which DOD attributes to more expensive transportation costs for equipment and
supplies, more difficult terrain, and establishing new facilities.
Future costs in Afghanistan remain uncertain as it is not clear at what pace U.S. troops may
withdraw starting in June 2011 or how long U.S. involvement will persist. Some observers see a
long lasting U.S. commitment in Afghanistan, while others expect a more limited role. (See below
for CBO estimates based on alternate troop scenarios.)
Past Trends and Future Costs in Enhanced Security
Funding for enhanced base security and other responses to the initial attacks – referred to by
DOD as Operation Noble Eagle – fell from the $12 billion available in the first year after the
9/11attacks to $8 billion in 2003. These decreases reflect the end of one-time costs like Pentagon
reconstruction ($1.3 billion), the completion of security upgrades, the scaling back of combat air
patrol (about $1.3 billion for around-the-clock coverage), and a cut in the number of reservists
guarding bases.26 In FY2004, the cost of enhanced security more than halved again, dropping to
$3.7 billion.
Beginning in FY2005, DOD funded this operation in its baseline budget rather than in
supplementals and costs fell to under $1 billion in FY2006, $500 million in FY2007, and about
$100 million per year after FY2008 (see Table 3).

26 DOD’s new estimate for ONE is $8 billion rather than the $6.5 billion shown in an earlier DOD briefing. For more
information, see CRS Report RL31187, Combating Terrorism: 2001 Congressional Debate on Emergency
Supplemental Allocations
, and CRS Report RL31829, Supplemental Appropriations FY2003: Iraq Conflict,
Afghanistan, Global War on Terrorism, and Homeland Security
, both by Amy Belasco and Larry Nowels.
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Administration and CBO Projections of Future Costs
In its FY2011 budget, the Administration includes a $50 billion “placeholder” figure for war costs
from FY2012-FY2020.27 Like the previous Administration, the Obama Administration argues that
the uncertainties are too great to include formal estimates for later years.
DOD’s FY2011 war request assumes average troop strength of 102,000 in FY2011 in
Afghanistan, a small increase above FY2010, and 43,000 troops in Iraq. Based on its spring
strategy review, the Administration’s plans call for the withdrawal of all U.S. troops from Iraq by
December 2011, suggesting that there would be relatively little war spending for Iraq in the
FY2012 budget and none thereafter assuming the withdrawal proceeds as planned.
Presumably, if a decision were made to withdraw troops below the level assumed in the FY2011
budget, the Administration would submit a budget amendment proposing decreases for FY2011
with the amount depending on the pace of any withdrawal plan adopted. Similarly, if a decision
were made to slow the pace of withdrawal from Iraq, a budget amendment adding funds would be
submitted next year.
For FY2012, the Administration’s budget request would presumably reflect the withdrawal of the
43,000 troops by December 2011 unless this plan were changed (and a change to the current Iraq
Status of Forces agreement was negotiated) and any plans to reduce the number of troops in
Afghanistan from the 102,000 strength for FY2011.
CBO Projections Based on Two Alternative Scenarios
Based on two illustrative scenarios – one assuming a faster reduction in the number of deployed
troops than current Administration plans and one possibly a more gradual drawdown – CBO
updated its previous projections for the cost of all three operations for the next ten years from
2012 – 2020 in January 2010.
Over the next ten years, CBO projects that over the next ten years war costs for DOD, State, and
VA could require an additional
• $274 billion if troop levels fell to 30,000 by 2013; or
• $588 billion if troop levels fell to 60,000 by 2015.28
If these CBO projections are added to funding already appropriated, the total cost of Iraq,
Afghanistan, and enhanced security or other contingency operations could reach from $1.56
trillion to about $1.88 trillion by FY2020 depending on the scenario.
Although CBO’s projections do not split funding for Iraq and Afghanistan, if all U.S. troops are
withdrawn from Iraq by December 2011, then presumably, most war funding in FY2012 and
thereafter would be for Afghanistan, or other contingency operations.

27 See Table S-10 in OMB, FY2011 Budget, Summary Tables; http://www.whitehouse.gov/omb/budget/fy2011/assets/
tables.pdf.
28 CRS calculation subtracting CBO’s FY2011 from figures shown in footnotes a and c in Table 1-5, and text on p. 14
in CBO, The Budget and Economic Outlook: Fiscal Years 2010:2020, January 2010; http://www.cbo.gov/ftpdocs/
108xx/doc10871/01-26-Outlook.pdf.
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In CBO’s projection where troop levels fall to a steady state of 30,000 troops by FY2013,
additional funding would total about $274 billion between FY2012 and FY2020. In this
projection, CBO projects that troop levels would drop from about 200,000 deployed troops in
FY2010 to:
• $121 billion for 150,000 troops in FY2011;
• $69 billion for 65,000 troops in FY2012;
• $40 billion a year for 30,000 in FY2013; and
• $25 billion a year from FY2014 on.29
CBO’s projections are considerably below DOD’s estimates of $159 billion in FY2011 for about
the same troop strength as has been true for previous CBO estimates as well.30 The differences
may stem partly from CBO’s inability to capture programmatic decisions like increasing funding
to train and expand the size of the Afghan security forces, and partly from CBO’s practice of
extrapolating from current costs rather than DOD’s practice of estimating each year separately.
There is some evidence in recently reported obligations that DOD’s war requests may be
overstated.31
In CBO’s other projection where troop levels fall more gradually to a steady state of 60,000 by
FY2015, funding would total about $588 billion for FY2012 – FY2020. In this projection, troop
levels start from a higher baseline of 235,000 troops in FY2010 (assuming a slower withdrawal in
Iraq) and would decline from:
• $158 billion for 230,000 troops in FY2011;
• $143 billion for 195,000 troops in FY2012;
• $108 billion for about 135,000 troops in FY2013;
• $71 billion for 80,000 troops in FY2014;
• $51 billion for 60,000 troops in FY2015; and
• $40 billion for 60,000 troops from FY2016 to F2020.32
Some observers would suggest that these two scenarios bound the most likely alternatives in the
next ten years while others might argue that maintaining current levels or withdrawing entirely
could also be options. These CBO projections assume that troops withdrawn return to the United
States. Yet another option would be for some number of troops to remain deployed in neighboring
countries like Kuwait.
CBO considers these to be rough projections rather than formal estimates in part because future
costs are difficult to estimate given the limited DOD information on the factors driving costs

29 Ibid.
30 Average strength would be 145,000 troops for DOD and 150,000 for CBO.
31 DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/fy2011/
FY2011_Budget_Request_Overview_Book.pdf. See discussion in CRS Report R41232, FY2010 Supplemental for
Wars, Disaster Assistance, Haiti Relief, and Other Programs
, coordinated by Amy Belasco.
32 See footnotes a and c in Table 1-5, and text on p. 15 in CBO, The Budget and Economic Outlook: Fiscal Years
2010:2020
, January 2010; http://www.cbo.gov/ftpdocs/108xx/doc10871/01-26-Outlook.pdf.
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incurred to date as well as the lack of a history of war outlays or actual expenditures because war
and baseline funds are mixed in the same accounts. In CBO’s projections, costs initially fall
somewhat more slowly than troops levels, and eventually catch up and become proportional.
CBO does not identify separate per troop costs for Iraq and Afghanistan.
FY2011 Request May be High in Light of Per Troop
Costs

While many observers use per troop costs to predict future costs – the Administration cited $1
million per troop per year in Afghanistan to justify its $30 billion supplemental request for
FY2010 – different types of war costs change for different reasons. While operational costs –
incremental military personnel costs and operating and maintenance costs – would be expected to
change with the number of troops deployed, other programs such as the training of Afghan
Security Forces change because of policy decisions. Procurement costs have also changed
because of policy decisions about what was considered as a war-related expense (see discussion
of Investment costs below).
CBO and DOD Estimating Methods
In its estimates, CBO relies on previous trends in operational costs in recent years to project the
effect of deploying additional troops in Afghanistan and withdrawing troops from Iraq, and then
estimates other types of expenses, e.g. force protection, separately.33 For each request, DOD uses
a model to estimate the costs of deploying specific types of units in each service coupled with its
deployment schedule plans.
It does not appear that DOD uses per previous annual per troop costs as a general check of the
validity of its model. Typically, CBO’s estimates, using per troop costs for operational costs, have
been considerably lower than DOD estimates. For example, CBO estimated that the operational
costs of deploying the additional 30,000 troops to Afghanistan ordered by President Obama
would cost $7 billion whereas DOD requested $19 billion.34
FY2011 Request Compared to Historical Averages
There is some evidence that DOD’s recent estimates of operational costs are larger than would be
expected based on previous experience and recently-reported obligations. As Table 4 shows,
average operational costs for both wars hovered around $500,000 per troop per year between
FY2006 and FY2009, with costs higher in Afghanistan than in Iraq in some years but lower in

33 CBO, “Letter to Congressman John Spratt on Analysis of Scenarios for Funding Iraq and Afghanistan,” January 21,
2010; http://www.cbo.gov/ftpdocs/109xx/doc10995/01-20-CostOfChangesinTroops.pdf; Congressional Budget Office,
Letter to Congressman John F. Tierney, Withdrawal of U.S. Forces from Iraq: Possible Timelines and Estimated Costs,
October 7, 2009; http://www.cbo.gov/ftpdocs/105xx/doc10523/10-07-TierneyTroopWithdrawal.pdf.
34 For CBO’s estimate, see Table 1 in 34 CBO, “Letter to Congressman John Spratt on Analysis of Scenarios for
Funding Iraq and Afghanistan,” January 21, 2010; Table 8-5 in DOD, FY2011 Budget Request: Overview, Feb. 1,
2010; http://comptroller.defense.gov/defbudget/fy2011/FY2011_Budget_Request_Overview_Book.pdf; these estimates
exclude depot maintenance costs for reset.
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other years including the FY2011 request. For example, between FY2005 and FY2009, average
annual operational costs per troop were $525,000 for Afghanistan and $462,000 for Iraq, or 12%
higher in Afghanistan.
These differences reflect higher military personnel costs in Afghanistan because DOD relied more
heavily on activated reservists in Afghanistan, whose full-time salaries count as incremental war
costs. O&M costs per troop were higher in Afghanistan in FY2008 and FY2005, which DOD has
argued that supplying and support troops in Afghanistan is more costly because of logistical
difficulties. That trend is not consistent, however, because in other years, however (FY2006,
FY2007, and FY2009), historical obligations show per troop costs to be lower in Afghanistan.
Compared to Iraq, DOD is projecting considerably higher costs for Afghanistan in FY2010 but
lower costs in FY2011 (see Table 4).
DOD’s requests for FY2010 and FY2011 generally include sharply higher annual per troop costs
for Afghanistan, with operational costs projected to jump from $507,000 in FY2009 to $667,000
in FY2010 and $694,000 in Afghanistan. Military personnel costs drop with lower reliance on
reservists as more active-duty troops are available with the drawdown in Iraq. Some would argue
that O&M these increases reflect the effect of deploying additional troops, mounting more
operations and expanding infrastructure.
Although troop increases began in FY2009 under former President Bush and continued under
President Obama, the cost increases are reflected first in FY2010 (see Table 4). At the same time,
O&M costs in Afghanistan would be expected to fall or level off once initial infrastructure is
completed, and as more troops occupy bases, as appears to have happened in Iraq between
FY2007 and FY2009. That does not appear to be DOD’s assumption for Afghanistan in its
FY2011 request where O&M costs continue to rise.
For Iraq, per troop operational costs are also projected to rise from $433,000 in FY2009 to
$469,000 per troop in FY2010 and $802,000 in FY2011, which some observers would suggest
reflect that troops may be withdrawn faster than infrastructure is dismantled., this sharp an
increase in costs in FY2011 compared to either the previous five-year average or FY2010 may be
an overly conservative assumption.
Table 4. Army, Navy, US Marine Corps, and Air Force Annual Operational Costs Per
Troop in Afghanistan and Iraq
FY2005-FY2011 Request
in thousands of dollars per troop per year
FY2010
Amended
FY2011
FY05-
Request in
Request,
FY09
Operation
FY05 FY06 FY07 FY08 FY09

BA, 2-1-10
2-1-10
Average
AFGHANISTAN
Average Strengtha
18,129 20,424 23,154 30,103 42,117 84,000 102,000 26,785
Military Personnel
189 115 149 166 172 97 92 158



Operation
and
Maintenance
293 328 417 462 335 569 603 367
Afghanistan Operational Costsb
483 442 566 628 507 667 694 525
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FY2010
Amended
FY2011
FY05-
Request in
Request,
FY09
Operation
FY05 FY06 FY07 FY08 FY09

BA, 2-1-10
2-1-10
Average
IRAQa
Average Strengtha
142,574 117,640 145,066 156,534 141,155 100,000 43,000 140,594
Military Personnel
81 121 93 87 78 87 135 92



Operation
and
Maintenance
272 389 417 418 354 382 668 370
Iraq Operational Costsb
352 509 510 505 433 469 802 462
COMPARING AFGHANISTAN AND IRAQ OPERATIONAL COSTS
Afghanistan less. Iraq Operational
130 -67 56 123 74 198
-108 63
Costs
%
Difference
27% -15% 10% 20% 15% 30% -16% 12%
AVERAGE OPERATIONAL COSTS FOR BOTH WAR WARS
Average Strength for Both Warsa 160,703 138,064 168,219 186,636 183,272 184,000 145,000 167,379
Average Operational Cost for
367 499 518 525 450 559 726 472
Both Warsb
Sources: DOD’s monthly Boots on the Ground reports for troop levels and DOD’s September 30, Cost of
War Reports for each fiscal year.
Notes: CRS calculations based on sources above. May not add to totals due to rounding.
a. Reflects average for each fiscal year of monthly troop levels reported by DOD.
b. Operational costs include appropriations for military personnel and Operation and Maintenance excluding
training of Afghan and Iraq security forces.
Another sign that DOD’s FY2011 request may be high is that obligations reported by DOD
three-quarters through FY2010, have not substantiated the increases projected for FY2010. For
example, DOD’s obligations for military personnel and Operation and Maintenance for FY2010
totaled $70.3 billion as of June 30, 2010, the most recent Cost of War report available. To use all
of the funds appropriated for war, DOD would need to spend the $35 billion in military personnel
and O&M funds, half as much as already spent for the first three-quarters of the fiscal year in the
next three months. At the end of the year, monies not spent would lapse and revert to the
Treasury.
Through June, 2010, monthly obligations for military personnel and O&M averaged $7.8 billion
gradually rising each month since last October with deployments of additional troops to
Afghanistan while declines in Iraq were quite gradual. For the month of June, 2010, these
obligations are running $8.8 billion, somewhat higher than the average for the fiscal year thus far,
reflecting that 94,000 of the 98,00 troops to be deployed in Afghanistan have arrived. At the
same, time, as of June, 2010, troop levels in Iraq there were still 92,000 troops but by August
2010, troop levels had fallen to the goal of 50,000.35
To spend its current appropriations, DOD’s monthly obligations would need to rise by about 50%
from the June level of $8.8 billion to about $13.0 billon for the last three months of the fiscal

35 Wall Street Journal, “Obama Marks End of Iraq War to Focus on Economy,” September 1, 2010.
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year. Although monthly operational costs in Afghanistan did increase from $2.8 billion in
December 2009 to $4.2 billion in June 2010, most of the additional troops were already deployed.
Although some additional growth could be expected with higher operational tempo, and
expansion in accommodations and services, this would be expected to be offset partially by
decreases in Iraq as troop levels drop rapidly from about 92,000 in June to under 50,000 by the
end of this August.36 Earlier in the year, costs in Iraq rose from $3.8 billion in December 2009 to
$4.2 billion in June 2010 despite troop level declines.
Typically, DOD’s operational war costs rise towards the end of the fiscal year, partly because
some support contracts are renewed late in the year, partly because the enactment of
supplementals reduces funding uncertainty, and partly because of the pressure to spend one-year
monies before they expire. At the same time, when DOD spends heavily at the end of a fiscal
year, less is needed in the early months of the new fiscal year.
In the case of FY2011, and if costs in Iraq begin to fall in consonance with troop levels, that could
mean that DOD has requested more funding for its operational costs than may be needed. If
DOD’s future spending were to follow either average per troop costs for the past three or the past
five years between FY2005-FY2009, Congress could reduce DOD’s war request for $116 billion
for military personnel and O&M in FY2011 by substantial amounts. Even if Congress assumed
the relatively high annual per troop levels projected for FY2010, reductions in operational costs
could be made.
Trends in DOD’s Average Monthly Spending
DOD’s average monthly obligations are frequently used as a way to measure the rate of ongoing
war spending. Obligations reflect the amount of budget authority (BA) for military and civilian
pay and for contracts signed by the government or orders placed within DOD for parts, repairs,
and purchase of weapons systems and supplies.
Although obligations go up and down from month-to-month, average obligations for a fiscal year
are a good indicator of ongoing operational costs (Military Personnel and Operation an d
Maintenance) because these funds must be obligated – put on contract – within the first year. For
investment costs, however, average monthly obligations lag appropriated budget authority since
only some funds are obligated in the first year because of the time for the planning and
negotiation of contracts. 37
Obligations figures do not reflect outlays – or payments made when goods and services are
delivered – which would be a better measure of spending rates and actual costs. Starting in
FY2009, DOD now tracks outlays, reversing its previous stance that these could not be captured
because war-related appropriations are co-mingled with regular or baseline funds. Outlays are
useful in giving a better sense of actual spending rates.

36 DOD, Cost of War Reports, December 2009 and June 2010.
37 Military personnel and O&M monies are available for obligations for one year, RDT&E monies for two years and
procurement and war-related military construction monies for three years rather than the five years for peacetime
military construction (see military construction accounts in P.L. 111-117).
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DOD’s average monthly obligations for both wars grew from $6.2 billion in FY2004 – after
initial combat operations in Iraq – to a peak of $14.2 billion in FY2008, during the surge in Iraq,
more than doubling in four years. Since FY2003, obligations for enhanced security (Operation
Noble Eagle) have fallen substantially from $520 million per month to about $20 million in
FY2010 as one-time costs ended and costs have been incorporated in day-to-day base operations
As of the end of June 2010, DOD reported that the cumulative total of war-related obligations
were $885.4 billion including:
• $641.5 billion for Iraq (72% of total);
• $217.1 billion for Afghanistan, almost all of Operation Enduring Freedom (25%);
and
• $26.9 billion for enhanced security (Operation Noble Eagle) (3%) (see Table
5).38
Table 5. DOD’s Obligations by Operation: FY2001- FY2010 to Date
(in billions of dollars)
DOD
Reported
Cumulative
Average
Obligations
Type of
thru June
FY01- June
Spending FY03 FY04 FY05 FY06 FY07 FY08 FY09 FY10
30, 2010a
IRAQ
Operationsb 4.2 4.3 4.7 5.9 7.1 7.6 6.1 4.3
NA
Investmentc 0.2 0.6 1.6 1.3 3.2 3.5 1.8 1.1
NA
Total
4.4 4.8 6.2 7.2 10.2 11.1 7.9 5.4
641.5
AFGHANISTANd
Operationsb 1.1 0.9 0.9 1.2 2.0 2.8 3.7 4.6
NA
Investmentc 0.2 0.1 0.1 0.2 0.1 0.3 0.7 1.1
NA
Total
1.3 1.0 1.0 1.4 2.0 3.1 4.4 5.7
217.1
ENHANCED SECURITYe
Operationsb 0.5 0.3 0.2 0.1 0 0 0 0
NA
Investmentc 0 0 0 0 0 0 0
0
NA
Total
0.5 0.3 0.2 0.1 0 0 0 0
26.9
ALL MISSIONS
Operationsb 5.8 5.5 5.8 7.2 9.1 10.4 9.8 8.9
NA
Investmentc 0.4 0.7 1.7 1.5 3.2 3.8 2.5 2.2
NA
Total
6.2 6.2 7.4 8.7 12.3 14.2 12.3
11.2
885.4

38 DOD, “Cost of War Slides As of April 30, 2010,” June 2010.
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Sources: DOD, “Cost of War Reports,” September 30 of each fiscal year, FY2003-FY2009 and April 2010 and
CRS adjustments based on other DOD and congressional sources.
Notes: NA = Not available. Numbers may not add to totals due to rounding. DOD reported obligations do not
include adjustments to monthly averaged calculated by CRS which include national intelligence, modularity
expenses, and some congressional additions that DOD does not consider war-related and excludes from its
reporting (see Appendix C).
a. DOD reporting does not include $47 billion in national intelligence and some congressional additions that
DOD does not consider to be war-related.
b. Includes funds appropriated for military personnel, operation and maintenance, working capital, defense
health, Afghanistan Security Forces Fund, Iraq Security Forces Fund, and Pakistan Counterinsurgency Fund.
c. Includes funds appropriated for procurement, RDT&E, and military construction.
d. Operation Enduring Freedom funds Afghanistan and other global war on terror (GWOT) activities.
e. Enhanced security includes additional security at defense bases, combat air patrol
DOD-reported obligations do not include some expenses that CRS considers to be war-related
such as $52 billion for war-related national intelligence, $10 billion for conversion to modular
units by the Army justified as a war expense, and other congressional changes (see Appendix
C
).39
To capture longer-term trends, average obligations for an entire fiscal year may be more useful
than individual months, which may go up and down depending on when contracts tend to be let,
as well as changes in troop levels. For example, war obligations to date in FY2010 (covering
from October 2009 through June 2010) average $11.1 billion a month, or about 10% below the
$12.3 billion monthly average in FY2009, reflecting, in part, the fact that obligations generally
tend to be lower in the first half of the fiscal year.
At the same time, DOD’s average obligations for the first nine months of the fiscal year are about
the same for Iraq and Afghanistan as troops gradually leave Iraq and others deploy to
Afghanistan—$5.4 billion for Iraq and $5.7 billion for Afghanistan (Table 5).
Looking at changes in obligations over the past year from June 2009 to June 2010 also shows the
effect of changing troop levels. For Iraq, June monthly obligations fell by 25% from $7.2.billion
to $5.4 billion as troop levels dropped by 32%. In Afghanistan, June monthly obligations rose by
63% from $3.5 billion to $5.7 billion while troop levels grew by 70%.40
Iraq Costs Change with Procurement and Troops Levels
In Iraq, average monthly obligations rose from $4.4 billion in FY2003 to $7.2 billion in FY2006
while average troop strength grew from 68,000 to 141,000. Then in FY2007, these obligations
grew sharply to $10.2 billion in FY2007 while troop strength rose modestly to 148,000. Iraq
obligations peaked at $11.1 billion in FY2008 reflecting the Iraq surge.

39 For expenses excluded in war cost obligations reports, see DOD, “Cost of War Slides As of April 30, 2010,” June
2010. Examples where CRS counts items as war costs and DOD does not include congressional adds for C-17 aircraft,
force-protection and other items.
40 CRS calculations based on DOD, Cost of War Reports, June 2010 and June 2009 and DOD’s Monthly Boots on the
Ground Reports for June 2009 and reported figures of June 2010.
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Much of this increase in Iraq obligations reflects a five-fold increase in investment obligations
from $560 million in FY2004 to $3.2 billion in FY20007, as the services began to spend
substantial amounts on reset – the procurement of new weapons systems and equipment not
simply to replace war losses (a small share of the total) but more often to upgrade and replace
“stressed” equipment, and enhanced force protection.
Some observers have questioned whether all of DOD’s war-related procurement reflects the
stresses of war. For example, a CBO study found that more than 40% of the Army’s spending for
reset—the repair and replacement of war-worn equipment—was not for replacing lost equipment
or repairing equipment sent home. Instead, Army funds were spent to upgrade systems to increase
capability, to buy equipment to eliminate longstanding shortfalls in inventory, to convert new
units to a modular configuration, and to replace equipment stored overseas for contingencies.41
Since FY2008, obligations have fallen to $7.9 billion for Iraq in FY2009 with average strength of
136,000.42 Both obligations and strength are continuing to fall in FY2010 to $5.4 billion with
average strength of 109,000 for the first seven months of FY2010 (see Figure 1 and Table 5).43
This year’s obligations reflects the decline in troop levels from 120,300 in October 2009 at the
beginning of FY2010 to 94,250 as of May 1, 2010 and about 92,000 in June 2010 (see Appendix
A
).44 For example, DOD’s obligations for Afghanistan were $5.5 billion in the month of June
2010 compared to an average of $7.9 billion for all of FY2009 (Table 5).45 Obligations for Iraq
are likely to continue to decline as troop levels fall to 50,000 by September 2010.
In addition, the new Administration changed the criteria for war-related procurement in February
2009, restoring the earlier definition which limited procurement to war losses for items not
already scheduled for replacement, limited upgrades to those directly supporting war operations,
and required that procurements be obligated within 12 months (see Appendix D).46
Since that time, monthly investment obligations for Iraq have fallen from a peak of $3.5 billion in
FY2009 to $1.1 billion in June, three-quarters of the way through FY2010, presumably reflecting
both the new stricter criteria and the decrease in troop levels and pace of combat operations as
U.S. soldiers transition to advisory roles. It is not clear, however, that DOD’s requests are
consistent with the requirement that procurement monies are to be obligated within 12 months
since about 50% or $9.5 billion of $19.2 billion already appropriated for procurement in FY2010
was not obligated as of April 30, 2010 almost 12 months after funding was provided.47

41 CBO, Replacing and Repairing Equipment Used In Iraq and Afghanistan: The Army’s Reset Program by Frances M.
Lussier, September 2007, p. ix, pp. 35-37; available at http://www.cbo.gov/showdoc.cfm?index=8629&sequcence=0&
from=7.
42 See Table 1 in CRS Report R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-FY2012: Cost and Other
Potential Issues
, by Amy Belasco.
43 Ibid. CRS calculation of average for FY2010 based on DOD’s monthly Boots on the Ground reports.
44 Department of Defense, “Boots on the Ground” reports, October 1, 2009 and May 1, 2010.
45 See Table 1 in CRS Report R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-FY2012: Cost and Other
Potential Issues
, by Amy Belasco.
46 OMB, “ Criteria for War/Overseas Contingency Operations Funding Requests,” February 26, 2009.
47 CRS calculation based on DOD, “Cost of War Report,” April 30, 2010; Congress provided procurement monies for
FY2009 in both 2008 and 2009 in the FY2008 Supplemental (P.L. 110-252) enacted June 30, 2008, and in the FY2009
Supplemental (P.L. 111-32) enacted June 24, 2009.
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Afghanistan Costs Rise with Troop Levels and Training Efforts
Average monthly obligations for Afghanistan hovered around $1 billion from FY2003 through
FY2005 with average troop strength growing from10,400 to 19,100. Obligations doubled from
$1.5 billion in FY2006 to $3.1 billion in FY2008 as average troop strength grew from about
20,000 to 30,000. Between FY2008 and FY2009, average monthly obligations increased
threefold from $1.3 billion to $4.4 billion while average strength more than doubled from about
20,000 in FY2008 to 51,000 in FY2009.48
This change reflects the growth in troop levels in Afghanistan from 65,800 in October 2009 to
89,700 by May 1, 2010 (see Appendix A). Costs reflect these changes with Afghanistan
obligations in June 2010 at $7.2 billion compared to an average of $4.4 billion for all of FY2009.
By September 2010, troop strength in Afghanistan is expected to reach 98,000 and monthly
obligations are likely to rise further. Spending rates in Afghanistan are also growing as operations
intensify, and more is spent to upgrade Afghan Security forces.49
Funds to Train and Equip Afghan and Iraqi Security Forces
As of passage of the FY2010 bridge war act in September 2009 (P.L. 111-118), appropriated
funding to train and equip these forces totals $49.1 billion including $25.9 billion for Afghanistan
and $23.2 billion for Iraq (see Table 6). An additional $17.6 billion – primarily for Afghanistan –
is requested in the FY2010 Supplemental (H.R. 4899) and the FY2011 request.
U.S. commanders have argued for some time that the pace of withdrawal of U.S. forces from Iraq
and the length of the U.S. commitment in Afghanistan depend on both conditions on the ground –
the number and types of attacks by various insurgent groups – and the size, readiness and
capabilities of Afghan and Iraqi security Forces.
With the ongoing withdrawal of U.S. forces and declines in violence in Iraq, congressional
concerns now focus on the problems and likely duration of training of the Afghan security forces.
Some believe that it will be several years before the Afghan security forces can effectively take
responsibility for their own security. Neither DOD nor the Administration have identified
timelines for this transition.
Trends in Funding of Afghan Security Forces
Despite a wide range of congressional concerns about these training programs, particularly in
Afghanistan, including problems with the performance of contractors, coordination between
DOD, State Department and NATO coalition efforts, shortages in trainers, problems with
corruption, absenteeism, and illiteracy, and most recently, a report by the Special Inspector

48 See Table 1 in CRS Report R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-FY2012: Cost and Other
Potential Issues
, by Amy Belasco.
49 See CRS Report R40682, Troop Levels in the Afghan and Iraq Wars, FY2001-FY2012: Cost and Other Potential
Issues
, by Amy Belasco and Senate Armed Services Committee, Transcript, “Hearing on Nominations of Admiral
Mullen for Reappointment to the Grade of Admiral and Reappointment as chairman of the Joint Chiefs of Staff”
September 15, 2009, p. 6. See also the White House, “Remarks by the President in Address to the Nation on the Way
Forward in Afghanistan and Pakistan,” Delivered at West Point, December 1, 2009; http://www.whitehouse.gov/the-
press-office/remarks-president-address-nation-way-forward-afghanistan-and-pakistan.
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General for Afghanistan Reconstruction questioning the reliability of DOD measures of Afghan
force readiness, Congress has generally provided DOD with full funding, presumably because of
the high stakes involved.50 Congress did, however, Congress cut the ASFF request from $3.7
billion to $2.0 billion in the FY2009 bridge.
Since FY2005, annual funding to train Afghan forces has grown rapidly from $1.3 billion to $7.4
billion in FY2007, then fallen to $2.8 billion in FY2008. In 2008, DOD announced plans to
double the size of the Afghan security forces in the next four years at a cost of about $20 billion.
Funding to train Afghan security forces doubled over the previous year to $5.6 billion in FY2009
reflecting both these plans and the new focus on Afghanistan in the Obama administration. With
approval of the FY2010 Supplemental, funding in FY2010 rises steeply to $9.2 billion. An
additional $11.6 billion is requested for FY2011 (see Table 6).51
Table 6. Afghan and Iraq Security Forces Funding: FY2004-FY2011 Request
(in billions of dollars)
Total
FY2011
Enacted
Account
FY04
FY05 FY06 FY07 FY08 FY09 FY10
Request
to Date
Afghan
[.3]a 1.3 1.9 7.4 2.8 5.6 9.2 11.6 28.5
Security
Forces
Fundb
Iraq
[5.0]a 5.7 3.0 5.5 3.0 1.0 1.0 2.0 24.2
Security
Forces
Fundb
Total
[5.3] 7.0 4.9 12.9 5.8 6.6 6.6 13.6 52.7
Sources: Congressional appropriation reports and laws for each fiscal year. Updated to reflect enactment of
FY2010 Supplemental (H.R. 4899/P.L.111-212) on July 29, 2010.
a. Includes al appropriations through FY2008 Supplemental/FY2009 bridge (H.R. 2642/P.L. 110-252), including
funds provided to the President in FY2004 shown in square brackets.
b. Figures in [ ] brackets are funds to train Afghan and Iraqi security forces that were appropriated to the
President and transferred to the Coalition Provisional Authority, and implemented by the Army. Iraq total
includes enacted funds from all U.S. sources. Afghanistan total does not include about $1 billion to $2 billion
that Afghan security forces received in FY2004 and FY2005 through State Department or foreign military
sales financing according to GAO-05-575, Afghanistan Security: Efforts to Establish Army and Police Have Made
Progress, but Future Plans Need to Be Better Defined, June 2005, p. 9. Figures reflect CRS calculations from
public laws and conference reports.
In its FY2011 budget request, DOD announced a further expansion of the Afghan National
Security forces from 190,820 in November 2009 to 305,600 by October 2011.52 Despite efforts by

50 CRS Report R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs,
coordinated by Amy Belasco and Special Inspector General for Afghanistan Reconstruction, “Actions Needed to
Improve the Reliability of Afghan Security Force Assessments,” June 29, 2010; http://www.sigar.mil/pdf/audits/
SIGAR%20Audit-10-11.pdf.
51 Total includes $5 billion appropriated to the State Department for Iraq training in FY2004. Afghanistan has also
received funding for its training from State Department accounts.
52 See Figure 6-3 in DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/
fy2011/FY2011_Budget_Request_Overview_Book.pdf.
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Secretary Gates to get additional support in training personnel from NATO partners over the past
several years, success has been limited and there continue to be shortages in trainers.53
Trends in Funding of Iraq Security Forces
Funding to train Iraqi forces fluctuated between $3.0 billion and $5.5 billion from FY2004 to
FY2008. In 2008, Congress became reluctant to rebuild Iraqi security forces as Iraqi government
revenues rose rapidly with the swell in oil prices.
In response to congressional concerns raised in a September 2008 House Budget Committee
hearing on a GAO report suggesting that there would be an Iraqi budget surplus of from $67
billion to $79 billion in 2008 due to oil prices, members called for “burdensharing” by Iraq in the
rebuilding of its security forces.
This push to require Iraq to share the burden of rebuilding its security forces a;sp resulted in
restrictions prohibiting U.S. funding of security forces as well as other “infrastructure” projects in
Iraq, including those to rebuild security forces in the FY2008 Supplemental (P.L. 110-252), as
well as various requirements to report the readiness and transfer of responsibility to Iraqi units,
and the overall cost to train both Iraqi and Afghan security forces.54 DOD has not provided
estimates of these total costs for either Iraq or Afghanistan.55
In FY2008, U.S. funding dropped from $3 billion in FY2008 to $1 billion in FY2009 as Congress
halved the ISFF request. In its initial FY2010 request, DOD did not ask for any funds but then
modified that to request $1 billion in the FY2010 supplemental for expenses that DOD believed
were necessary but the Iraqi government would not cover, an amount Congress approved (see
Table 6).56
Explaining Changes in DOD’s War Costs over Time
Changes in war costs would be expected to vary with troop levels, war-related benefits, the
intensity of operations, and levels of basing support services. The extent of competition in
contracts and the price of oil would also be expected to affect the prices of goods and services
purchased by DOD.
A list of the primary war cost drivers would be expected to include:
• the number of troops deployed or anticipated to deploy, including the number of
activated reservists;
• changes in the pace of operations (optempo);

53 “U.S. Urges Allis to Fund Afghan Army Growth,” September 19, 2008.
54 See Explanatory Statement for H.R. 2642 in Congressional Record, May 19, 2008, p. S4337; and Sec. 1508 in S.
3001, the FY2009 National Defense Authorization Act. Sec. 9205, P.L. 110-252.
55 See Section 1321, P.L. 110-181 Report, ”United States Plan for Sustaining the Afghanistan National Security
Forces,” April 2010.
56 GAO-08-1144T,Statement of Joseph A. Christoff before the House Budget Committee, “Stabilizing and Rebuilding
Iraq: Iraqi Revenues, Expenditures, and Surplus,” p. 3, September 16, 2008.
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• changes in the amount of equipment and number of personnel to be transported
to the theater of operations;
• whether support is designed to be temporary or longer-term;
• force protection needs;
• how quickly equipment breaks down and how quickly it is to be replaced or
upgraded; and
• military basing plans that underlie construction requests.
Troop levels would be expected to be the basic factor that drives the cost of carrying out military
activities including the number and intensity of operations conducted, providing support to troops
ranging from meals and housing to force protection items like uparmored trucks and body armor,
and ultimately to the amount of repair and replacement needed for war-worn equipment. Troop
levels, however, have risen far less than costs.
Military Personnel Cost Is Not main Factor in Increases
Changes in the number of military personnel participating in the two wars has not been the
primary factor in the growth in war costs. In fact, little of the overall $107 billion or 150%
increase in DOD costs between FY2004 and FY2008, the peak funding year during the Iraq
surge, is attributable to changes in the average strength of military personnel either deployed or
mobilized for the Afghan and Iraq wars. (In addition to those deployed, some 50,000 to 80,000
reservists were mobilized and stationed in the United States to “backfill” the positions of active-
duty personnel who were deployed.)57
Between FY2004 and FY2008, the cost of military personnel changed little, changing by less than
$1 billion (see Table 7). During the same period, average military strength for the two wars grew
by 8% including all those either deployed or mobilized and stationed in the United States;
military personnel costs crew by about 2% or $300 million, explaining little of the overall
increase of $107 billion between those two years (see Table 7).58
Military personnel costs include not only the number of personnel receiving special war-related
pay and benefits (e.g., hostile fire or imminent danger pay, separation pay, survivors benefits), but
also the additional cost of activating reservists. In addition, DOD requested and received funding
to cover the cost of “over strength” or additional active-duty personnel who have been recruited
and retained to meet wartime needs above DOD’s pre-war strengths—482,000 for the Army and
172,000 for the Marine Corps, originally intended as a temporary increase but than made
permanent by the Defense Department.

57 CRS calculation from Defense Manpower Data Center (DMDC), DRS 21198, “Average Number of Members By
Month, 0109-1004,” April 30, 2010, which shows the average number of reservists activated but not deployed, i.e.
serving in the United States as 80,271 in FY2004 and 47,442 in FY2004.
58 These percentages reflect growth from average strength of 309, 997 in FY2004 to 335,456 in FY2008, figures higher
than “Boots on the Ground” because personnel in surrounding areas supporting those operations (e.g., Kuwait) are
included as well as those in Afghanistan and Iraq. CRS calculations from Defense Manpower Data Center (DMDC),
DRS 21198, “Average Number of Members By Month, 0109-1004,” April 30, 2010.
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The fact that the cost of military personnel grew less than the increase in strength may reflect that
DOD reduced its reliance on reservists, who cost more than active-duty personnel during wartime
because of the additional cost of paying full-time rather than part-time salaries. In FY2008,
reservists accounted for about a third (32%) of war-related average strength compared to close to
half (48%) in FY2004.59
Operation and Maintenance Costs Grow Faster Than Troop Levels
Operation & Maintenance (O&M) funding nearly doubled between FY2004 and FY2008, from
$42.0 billion to $79.1 billion, an increase of $37.1 billion (see Table 7). War-related O&M costs
would be expected to reflect not only the number of military personnel deployed to Iraq and
Afghanistan but also the intensity of operations, the costs of transporting military equipment to
theater, and the types of base support provided. The number of deployed personnel (excluding
reservists stationed in the United States) increased by 25% between FY2004 and FY2008.60
O&M costs grew over three-times as much as the number of deployed personnel.
If O&M costs had grown proportionately with changes in the number of deployed troops, the
amount in FY2008 would have been $52.5 billion rather than $79.1 billion, suggesting that about
$26.6 billion of the increase reflected other factors.

Table 7. DOD’s War Budget Authority by Title: FY2004-FY2011 Request
(in billions of dollars)
Enacted

FY2011
Title FY04
FY05
FY06
FY07
FY08
FY09
FY2010

Request
Military
Personnel 17.8 19.7 16.7 18.8 18.1 18.7
16.8
15.3
Operation &
Maintenance
42.0 47.9 60.0 75.0 79.1 82.2
99.2 101.6
Defense
Health
0.7 1.0 1.2 3.0 1.6 1.8
1.3
1.4
Other Defense
Programsa
0.1 0.2 0.2 0.4 0.3 0.3
0.4
0.5
Procurementb
7.2 18.0 22.9 45.4 61.5 32.0
28.0
21.4
Research, Dev.,
Testing & Evaluation
0.4 0.6 0.8 1.5 1.5 1.3
0.5
0.6
Working Capital
Fundc
1.6 3.0 3.0 1.1 1.6 0.9
0.4
0.5

59 CRS calculation based on DRS Report R21198 cited above, April 30, 2010.
60 CRS calculation from Defense Manpower Data Center (DMDC), DRS 21198, “Average Number of Members By
Month, 0109-1004,” April 30, 2010, which shows the average strength of deployed personnel growing from 229,726 in
FY2004 to 288,013 in FY2008, including all personnel deployed for OEF and OIF rather than only those in
Afghanistan or Iraq.
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Enacted

FY2011
Title FY04
FY05
FY06
FY07
FY08
FY09
FY2010

Request
Military
Construction
0.5 1.2 0.2 1.7 1.6 0.9
2.0
1.3
Subtotal: Regular
70.3 91.7 105.1 146.9 165.4 138.0
148.7
142.5
Titles
Special Funds and Caps
Iraq Freedom Fundd 2.0 3.8 3.3 0.4 3.8 0
0
0
Afghan Security
Forces Training
Funde
0
1.3
1.9
7.4
2.8
5.6
9.2
11.6
Iraq Security Forces
Training Funde
[5.0] 5.7 3.0 5.5 3.0 1.0
1.0
2.0
Joint Improvised
Explosive Device
(IED) Defeat Fundf
0.0
0.0
3.3
4.4
4.3
3.1
1.8
3.3
Strategic Reserve
Readiness Fundf
0.0 0.0
0.0 1.6 0 0
0
0
Coalition Support
Capg
[1.2] [1.2] [1.3] [1.4] [1.1] [1.5]
[1.6]
[2.0]
Cmdrs’ Emerg.
Response Cap
(CERP)g
[.2] [.8] [.9] [1.0]
[1.2] [1.5] [1.2] [1.3]
Pakistan
Counterinsurgency
Fund
0 0
0
0 .4
0 0 0
Special Transfer
Authority Caph
[3.0] [3.0] [4.5] [3.5] [6.5] [4.0]
[4.0]
[3.5]
Subtotal: Special
Funds
2.0 10.7 11.5 19.3 13.8 10.1
11.9
16.9
Dept. of Defense
Total
72.3 102.4 116.7 166.2 179.2 148.2
160.7
159.3
Sources: CRS calculations based on congressional appropriation reports for each bill with DOD funding (see
Appendix B). Updated for FY2010 Supplemental, H.R. 4899/P.L. 111-212, enacted July 29, 2010.
Notes: Numbers may not add tot total due to rounding. This table separates funds with special purposes such
as the Afghan Security Forces Fund from the regular titles to better identify trends. Includes transfers to war
funding from baseline accounts to meet unanticipated needs.
a. “Other Defense Programs” includes counter-drug and Office of Inspector General funds.
b. Procurement includes funding provided in the Mine Resistant Ambush Protected (MRAP) vehicles.
c. Working capital funds finance additional inventory for support items such as spare parts.
d. IFF includes funds for national intelligence programs, as well as funds transferred for war operations
captured in the accounts where they were spent..
e. Training Iraqi security forces was initially funded in the State Department [ shown in brackets ] but is now
funded in DOD. The Afghan Army also received some State Department funds.
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f.
The Joint IED Defeat Fund finances responses to IED attacks through transfers to procurement, RDT&E,
and operation and maintenance programs; the FY2006 total includes $1.4 billion transferred from the Iraqi
Freedom Fund.
g. Congress sets caps within O&M accounts for coalition support –reimbursements to allies conducting
operations or logistical support for OIF and OEF, and lift, support, training and equipping of allies
conducting other counter-terror operations, and for CERP, a program which permits military commanders
to fund small-scale reconstruction projects in Iraq and Afghanistan.
h. Congress sets the amount of transfer authority in each bill. The table includes amounts provided for both
bridge and supplemental funds. Includes $10.4 billion for Iraqi Freedom Fund in FY2003 (deducting specified
floors) plus $2 billion in transfer authority.
Several factors that may have contributed to this additional increase in O&M funding include:
• Substantial unanticipated growth in requirements for force protection gear and
equipment ranging from night vision goggles to uparmored HMMWVs;
• extensive increases in command, communications, control, computers and
intelligence support;
• DOD policy decisions to carry as war costs the Army’s conversion to a modular
structure, a modernization change, including some O&M as well as equipment
costs;
• O&M costs associated with increases in the size of the Army and Marine Corps
originally planned to be temporary and carried as a war cost, later adopted as
permanent;
• the building of extensive and in some cases, elaborate, infrastructure to support
troops and equipment in-country, and in neighboring areas; and
• poor wartime contracting practices increasing waste, fraud, and abuse and hence
the cost of providing services to deployed personnel as reported by the
Commission on Wartime Contracting.61
Dramatic Growth in Investment Costs Now Moderated
Since FY2004, the rise in procurement costs has been dramatic – a seven-fold increase from $7.2
billion in FY2004 to $61.5 billion in FY2008, the peak year, accounting for $54.3 billion or close
to half of the total increase in war costs in that period. The peak year reflects a congressional
decision to spend $16.8 billion to buy what was then anticipated to be the full requirement for
Mine Resistant Ambush Protected (MRAP) vehicles, a heavy truck with a V-shaped hull found to
increase soldier survivability against roadside bombs or Improvised Explosive Devices (IEDs)
(see Table 7).

61 See CRS, Statement of Amy Belasco before the House Budget Committee, Hearing on “The Rising Cost of the Iraq
War,” October 24, 2007; http://budget.house.gov/hearings/2007/10.24Belasco_testimony.pdf; Commission on Wartime
Contracting in Iraq and Afghanistan, “At What Cost: Contingency Contracting in Iraq and Afghanistan,” Interim
Report, June 2009;
http://www.wartimecontracting.gov/docs/CWC_Interim_Report_At_What_Cost_06-10-09.pdf;
Commission on Wartime Contracting in Iraq and Afghanistan,” Special Report on Contractor Business Systems,
“Defense Agencies must improve their oversight of contractor business systems to reduce waste, fraud, and abuse,”
September 21, 2009; http://www.wartimecontracting.gov/docs/CWC_SR1_business-systems_2009-09-21.pdf.
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As a share of DOD war appropriations, procurement grew from about 10% in FY2004 to about
20% in FY2006 and 34% FY2008. Since FY2003, DOD has received about $214.5 billion in war-
related procurement funds—equal to about 2 and ½ times DOD’s average peacetime procurement
budgets in those years. Other investment costs – Research, Development, Test & Evaluation
(RDT&E) and Military Construction have also grown rapidly though they generally account for
about $2 billion in war funding (see Table 7).62
Typically, war funds do not include RDT&E or military construction because both activities take
considerable time, and hence do not appear to meet an emergency criterion. In this respect, the
Iraq and GWOT conflicts have broken new ground. DOD is now receiving substantial war
funding for RDT&E in both titles, particularly the Joint IED Defeat Fund, a new account to
develop and field new ways to counter roadside bombs or Improvised Explosive Devices, which
are later transferred to individual accounts after enactment, which now receives $3 billion to $4
billion annually (see Table 7).
Some of the reasons for this surge in war-related investment costs are known:
• a push by both DOD and Congress to provide more force protection equipment
and increase situational awareness (e.g., uparmored High Mobility Multipurpose
Wheeled Vehicles (HMMWVs), radios, sensors);
• a decision to fund as war expenses equipment for newly configured Army and
Marine Corps units, known as modularity or restructuring;
• the growing bill to rebuild or replace damaged equipment, a process known as
reset or reconstitution;
• and perhaps most importantly, the adoption by DOD in 2006 of an expansive
definition of the types of programs that DOD considered to be war-related to
include those necessary to prepare for a “long war on terror,” rather than
specifically the Afghan and Iraq wars (see Appendix D).
DOD ultimately requested and received as part of war funding considerable procurement funds
for recapitalization of equipment, converting to modular units, force protection, and upgrades,
much of which overlapped baseline budget requirements, since DOD is always purchasing new
equipment to improve capability. In this way, DOD war funding, in fact, financed some of DOD’s
modernization requirements sooner than anticipated.
Other funding, for example, for force protection items like uparmored HMMWVs, MRAP
vehicles and additional communication gear, was not anticipated in DOD’s long-term planning
because the nature of the counterinsurgency warfare was not considered a high priority.

62 DOD’s base procurement was $74.7 billion in FY2004, $77.7 billion in FY2005, $76.5 billion in FY2006, $80.9
billion in FY2007, $98.2 billion in FY2008, $101.1 billion in FY2009, and $104.3 billion in FY2010; for figures, see
CRS Reports CRS Report RL31805, Authorization and Appropriations for FY2004: Defense, CRS Report RL32305,
Authorization and Appropriations for FY2005: Defense, CRS Report RL32924, Defense: FY2006 Authorization and
Appropriations
, CRS Report RL33045, The Continued Dumping and Subsidy Offset Act ("Byrd Amendment"), CRS
Report RL34278, FY2008 Supplemental Appropriations for Global War on Terror Military Operations, International
Affairs, and Other Purposes
, CRS Report RL34473, Defense: FY2009 Authorization and Appropriations, CRS Report
R40467, Authority of State Legislatures to Accept Funds Under the American Recovery and Reinvestment Act of 2009
(P.L. 111-5)
.
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Shifting funding from the regular budget to emergency funding is attractive because DOD’s
emergency spending has not been subject to budget caps, allowing the services to substitute other
less urgent requirements in their baseline budgets. On the other hand, DOD consistently faces
budget pressure from unanticipated increases in the cost of its new weapon systems.
With the new Administration, this trend may have been reversed with DOD’s adoption of stricter
guidance for procurement and investment requests in FY2009, restoring the earlier definition of
reset, which limited procurement to war losses, and excluded items currently scheduled for
replacement, and limited upgrades to those directly supporting war operations. With this new
guidance, procurement levels have dropped from the peak of $61.5 billion in FY2008 to $32.0
billion in FY2009, $27.5 billion in FY2010 (including the pending request), and $21.4 billion in
the FY2011 request (see Table 7).
In addition, the new criteria required that procurement requests be limited to those which could be
obligated, or put on contract, within 12 months, as would be appropriate for emergency war-
related requirements.63 It does not appear that all of DOD’s recent war procurement requests will
comply with this requirement because as of April 2010, DOD Cost of War reports show some
40% of funds appropriated in FY2009 for war as unobligated.64
Procurement levels would also be expected to fall as troops are withdrawn from Iraq reducing the
wear and tear on equipment. Although the Army has anticipated that reset requirements would
persist even after forces are withdrawn, DOD’s reset requirements have largely been covered
within its war funding requests. At the same time, higher troop levels in Afghanistan would not
immediately require buying new equipment because the effect of operations on equipment takes
time.
In addition, in the past two years, Secretary of Defense Gates has pushed to move some war costs
that he considers part of long-term requirements for counter-terrorism operations or those likely
to persist after conflicts end to the base budget. This includes, for example moving an expansion
of special operations forces, and higher funding for mental health to the base budget. While some
$8 billion was transferred from the war to the base budget in FY2010, and smaller amounts in
FY2011, DOD has not published its criteria, and the scope of likely transfers is unclear.65
Military Construction Grows Rapidly
Funding for military construction has been controversial for several reasons, with members
particularly concerned about whether construction indicates an intent to set up permanent bases in
Iraq and now in Afghanistan. Both recent defense appropriation and authorization acts prohibit
the United States from establishing permanent bases in either Iraq or Afghanistan.66

63 OMB, “ Criteria for War/Overseas Contingency Operations Funding Requests,” February 26, 2009.
64 CRS calculation based on DOD, “Cost of War Report,” April 30, 2010.
65 CRS Report R40567, Defense: FY2010 Authorization and Appropriations, coordinated by Pat Towell, p.17.
66 See Sec. 314 and Sec. 315 and Sec. P.L. 110-32 in the FY2009 Supplemental Appropriations Act applying to “this or
any other act”, and Secs. 1237 and Sec. 2806, P.L. 111-84, the FY2010 National Defense Authorization Act; see also
section, “More Spending for Bases in Afghanistan Raises Questions of Permanency and Execution,” in CRS Report
R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs, coordinated by Amy
Belasco.
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In addition, the timing of construction may prove problematic since building facilities often takes
several years, and future plans for Afghanistan remain uncertain. DOD has also requested funds
for some construction in the United States that may be only marginally war-related (e.g., soldier
readiness centers, childcare centers, and barracks improvements).
Although DOD guidelines emphasize building relocatable structures in Iraq and Afghanistan,
some structures could be either temporary or permanent. While concerns about Iraq have
dissipated with troop withdrawals, concerns in Afghanistan are growing, as is funding and use of
DOD’s contingency contracting authority where DOD can draw funds from O&M for
construction projects that were not anticipated at the time of the request (see discussion of this
issue in CRS Report R41232, FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief,
and Other Programs
, coordinated by Amy Belasco). In light of the uncertainty about the timeline
of the U.S. presence in Afghanistan, this issue is likely to continue to be a significant concern.
In addition, DOD built up a far more extensive infrastructure than anticipated to support troops
and equipment in and around Iraq and Afghanistan. Military construction funding more than
doubled from $.5 billion in FY2005 to $1.7 billion in FY2007, continuing at that level in
FY2008.In FY2010, this funding reaches $2.0 billion with another $1.3 billion requested in the
FY2011 request, all reflecting the expansion of U.S. operations in Afghanistan (see Table 7).
Special Funds and the Flexibility Issue
Shortly after the 9/11 attacks, Congress gave DOD additional flexibility to respond to the
uncertainty of wartime needs by providing lump sums in certain special accounts.67 Once the Iraq
war operations began, Congress also gave DOD funding for those war operations in the Iraq
Freedom Fund (IFF), which were then transferred to regular individual accounts as requirements
became clear. Later Congress agreed to set up special accounts or set caps to meet specific
wartime needs, which didn’t neatly fit into traditional accounts, such as the Afghan Security
Forces Fund or the Commanders Emergency Response Program (CERP).
The issue for Congress is the amount of flexibility to give DOD to meet needs which it cannot
define when appropriations are requested, and whether after-the-fact reporting is an adequate
method of control. With problems identified by the Special Inspectors General for Iraq and for
Afghanistan, GAO, and other inspection agencies in the Afghan and Iraq Security Forces Funds
and in the Commanders Emergency Response Program, congressional concerns have grown as
have reporting requirements.
Short-Term Flexible Accounts
DOD initially received $17 billion in its Defense Emergency Response Fund (DERF), spending
those funds directly out of the account based on broadly defined allocations such as “increased
situational awareness,” and “increased worldwide posture.”68 In the FY2002 Supplemental,

67 Congress appropriated $20 billion in the government-wide Emergency Response Fund which could be spent by the
President at his discretion (P.L. 107-38). DOD also received another $3.5 billion in the DERF but had to follow
allocations that were set in the FY2002 DOD Conference report (H.Rept. 107-350, p. 423).
68 Congress appropriated $20 billion in the government-wide Emergency Response Fund which could be spent by the
President at his discretion (P.L. 107-38). DOD also received another $3.5 billion in the DERF but had to follow
allocations that were set in the FY2002 DOD Conference report (H.Rept. 107-350, p. 423).
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Congress appropriated $13 billion for war costs including $11.9 billion in the DERF, which was
transformed into a transfer account where funds, with guidelines by accounts set in the
conference report.69
Another example of short-term flexible accounts is the $77.4 billion in war funding appropriated
by Congress in the FY2003 Supplemental, including $15.6 billion in a new Iraq Freedom Fund
(IFF) where DOD could transfer funds after enactment, and then report to Congress.70 As the
Afghan and Iraq wars continued, Congress insisted that DOD receive war funding in its
traditional accounts. Since FY2004, Congress has appropriated most war funds to DOD’s regular
accounts, but has given DOD larger amounts of transfer authority where DOD can move funds
after enactment with the consent of the four congressional defense committees.
Special Purpose Accounts
To meet particular requirements, however, Congress agreed to establish special accounts which
allow DOD free to allocate funds as requirements evolve. For example, DOD receives funds in
the Afghan Security Forces Fund (ASFF) that can be used for either Operation and Maintenance
or Procurement.
Higher funding levels in these new accounts generally does not reflect troop levels or immediate
operational needs and accounts for some of the growth of war costs since FY2004. Between
FY2004 and FY2008, the peak war funding year, these accounts grew from $2.0 billion to $13.8
billion, thus helping explain about $10 billion of the $107 billion overall increase (see Table 7).
These flexible accounts include:
• Afghan and Iraq Security Forces Funds for training and equipping police and
security forces, with changes reflecting plans to increase the force size;
• the Joint Improvised Explosive Device (IED) Defeat Fund for providing funds to
be transferred to procurement, RDT&E, or operation and maintenance to develop
and field solutions to the IED threat with funding reflecting anticipated
breakthroughs; and
• the Iraq Freedom Fund, set up to cover war operations cost in the first year of the
invasion and occupation (IFF), which DOD later transferred to regular accounts.
The Afghan and Iraq Security Forces Funds provide lump sums which DOD can allocate between
equipment and training needs. Similarly the Joint IED Defeat Fund allows DOD to decide where
funds are needed to meet this threat. Although the new accounts are designated to meet particular
goals, they provide additional funding flexibility to DOD.
Congress has also set caps or ceilings on funding within O&M accounts for specific purposes
rather than setting up separate accounts. These include funding for

69 H.Rept. 107-593, p. 17 and 128.
70 Congress rescinded $3.5 billion of the $15.6 billion originally appropriated to the IFF and included ceilings for
certain purposes, such as intelligence, within the total.
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• Coalition support primarily to support Pakistan’s counter-terror operations related
to OIF and OEF or other counter-terror operations; and the
• Commanders Emergency Response Program (CERP) for small reconstruction
projects selected and run by individual commanders including support for local
militia groups;
Typically, Congress has given DOD wide latitude in how to use these funds and required after-
the-fact quarterly reporting.
Questions To Raise About War Funding Issues
To evaluate DOD’s war-related war funding requests, Congress may want to consider asking the
following questions:
• whether reset requirements accurately reflect changes in force levels and the pace
of operations;
• whether OMB’s new guidelines to restrict equipment upgrades, emphasize
quickly-spending funds, cut programs already scheduled for modernization are
being followed;
• how previous war procurement funding could reduce DOD’s regular maintenance
and procurement needs by fixing and buying equipment earlier than planned;
• whether DOD extensive investments in the past nine years could reduce base
budget funding requirements as troop level drop and the equipment is returned;
and
• what types of expenses are appropriately funded in DOD’s baseline budget for
long lasting requirements for counterinsurgency conflicts as opposed to funding
of the specific needs for the Afghan and Iraq wars?
• what are the long-term costs of training, equipping, and maintaining Afghan and
Iraqi security forces, coalition support, and the Commanders Emergency
Response Program (CERP)?
Congressional Options to Affect Military
Operations

As interest in alternate policies for first Iraq and now Afghanistan has grown, Congress may turn
to the Vietnam, and other experience to look for ways to affect military operations and troop
levels in Iraq. In the past, Congress has considered both funding and non-funding options. Most
observers would maintain that restrictions tied to appropriations have been more effective.71

71 For an analysis of the legal issues in restricting military operations, see CRS Report RL33837, Congressional
Authority to Limit U.S. Military Operations in Iraq, by Jennifer K. Elsea, Michael John Garcia, and Thomas J. Nicola.
For examples of past enacted and proposed restrictions, see CRS Report RL33803, Congressional Restrictions on U.S.
Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding and Non-Funding Approaches, by
(continued...)
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Restrictive funding options generally prohibit the obligation or expenditure of current or
previously appropriated funds. Obligations occur when the government pays military or civilian
personnel, or the services sign contracts or place orders to buy goods or services. Expenditures, or
outlays, take place when payment is provided.
The Vietnam Experience
Past attempts or provisions to restrict funding have followed several patterns, including those that
cut off funding
• for particular types of military activities but permit funding for other activities
(e.g., prohibiting funds for combat activities but permitting funds to withdraw
troops);
• as of a certain date in a specific country;
• “at the earliest practical date,” which essentially gives the president leeway to set
the date; or
• if certain conditions are met (such as a new authorization) or certain events take
place (such as the release of U.S. prisoners of war).
Other non-funding approaches to restrict military operations have
• required that troops be withdrawn by a specified date or at the “earliest practical
date;”
• withdrawn funds unless there was a declaration of war or a specific congressional
authorization of the war activities; or
• repealed previous congressional resolutions authorizing military activities.
One or both houses may also state a “sense of the Congress,” or non-binding resolution that does
not need to be signed by the President, that U.S. military operations should be wound down or
ended or forces withdrawn.
While only a handful of provisions have been enacted, congressional consideration of these
various limiting provisions did place pressure on the Administration and thus influenced the
course of events. For example, the well-known Cooper-Church provision that prohibited the
introduction of U.S. ground troops into Cambodia was enacted in early 1971 after U.S. forces had
invaded and then been withdrawn from Cambodia. That provision was intended to prevent the
reintroduction of troops.72 Although President Nixon did not reintroduce U.S. troops, the United
States continued to bomb Cambodia for the next three years.

(...continued)
Amy Belasco et al. For recent proposals to restrict military operations, see CRS Report RL33900, FY2007
Supplemental Appropriations for Defense, Foreign Affairs, and Other Purposes, coordinated by Stephen Daggett.
72 See discussion and language of the Cooper-Church amendment (Sec.7, P.L. 91-652) in CRS Report RL33803,
Congressional Restrictions on U.S. Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding
and Non-Funding Approaches
, by Amy Belasco et al..
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Later in 1973, Congress passed two provisions that prohibited the obligation or expenditures of
“any funds in this or any previous law on or after August 15, 1973” for combat “in or over or
from off the shores of North Vietnam, South Vietnam, Laos or Cambodia.”73 The final version of
that provision reflected negotiations between the Administration and Congress about when the
prohibition would go into effect, with August 15, 1973 set in the enacted version. Bombing did, in
fact, stop on that day.
Several well-known proposals that were not enacted—two McGovern-Hatfield amendments and
an earlier Cooper-Church amendment—were also part of this Vietnam-era jockeying between the
Administration and Congress. One McGovern-Hatfield amendment prohibited expenditure of
previously appropriated funds after a specified date “in or over Indochina,” except for the purpose
of withdrawing troops or protecting our Indochinese allies, while another also prohibited
spending funds to support more than a specified number of troops unless the president notified
the Congress of the need for a 60 day extension. The earlier Cooper-Church amendment
prohibited the expenditure of any funds after July 1, 1970 to retain troops in Cambodia “unless
specifically authorized by law hereafter.”74
Generally, Congress continued to provide funds for U.S. troops in Vietnam at the requested levels
as the Nixon Administration reduced troop levels. Overall, funding restrictions have generally
proven more effective than the War Powers Act, which has been challenged by the executive
branch on constitutional grounds.75
Recent Restrictions Proposed
Most recently, as part of the July 1, 2010 debate over the House amended version of H.R. 4899,
the FY2010 Supplemental, the House considered three amendments designed to restrict funding
or troop levels for the Afghan war. The amendments are similar to some of those proposed during
the Vietnam war.
Amendment No. 3 would delete all military funding for the Afghan war , and was defeated 25 to
376.76
Amendment No. 4 would limit the obligation and expenditure of funds to the protection and “safe
and orderly withdrawal from Afghanistan of all members of the Armed Forces and Department of
Defense contractor personnel who are in Afghanistan,” and was defeated 100 to 321.77

73 One provision was included in both P.L. 93-52, the Continuing Appropriations Act of 1974 and the Second
Supplemental Appropriations Act of 1973, P.L. 93-50, both enacted July 1, 1973; see CRS Report RL33803,
Congressional Restrictions on U.S. Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding
and Non-Funding Approaches
.
74 See H.R. 17123, H.R. 6531, and H.R. 15628 in Table 1 and Appendix of CRS Report RL33803, Congressional
Restrictions on U.S. Military Operations in Vietnam, Cambodia, Laos, Somalia, and Kosovo: Funding and Non-
Funding Approaches
.
75 CRS Report RS20775, Congressional Use of Funding Cutoffs Since 1970 Involving U.S. Military Forces and
Overseas Deployments
, by Richard F. Grimmett.
76 See H.Rept. 111-522, p. 5 and p. 58 and Congressional Record, July 1,2 010, pp. H5358-H. 5407.
77 See H.Rept. 111-522, p. 5 and p. 59ff and Congressional Record, July 1, 2010, pp. H5358-H5407.
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Amendment No. 5 would require the President to submit a plan for a “safe, orderly, and
expeditious redeployment of the Armed Forces from Afghanistan,” along with a “timetable for the
completion of that redeployment and information regarding variables that could alter that
timetable,” as well as require that none of the funds in the act be obligated or expended “in a
manner that is inconsistent with the President’s policy announced on December 1, 2009, to begin
the orderly withdrawal of United States troops from Afghanistan after July 1, 2011,” unless the
Congress approves a joint resolution that would receive expedited consideration in both houses.78
This amendment was defeated 162 to 260.
Improving War Cost Estimates and Reporting
GAO, CBO, and CRS have all testified before Congress about the limited transparency in DOD’
war cost estimating and reporting.79 While DOD has provided considerably more justification
material for its war cost requests beginning with the FY2007 Supplemental, many questions
remain difficult to answer – such as the effect of changes in troop levels on costs—and there
continue to be unexplained discrepancies in DOD’s war cost reports.
DOD also now reports the budget authority appropriated for war, the amounts within
supplementals or other bills with war funding that DOD does not consider to be war-related and
are not included in its monthly obligation reports, the amounts transferred between the base
budget and war funding, and amounts that remain unobligated each month by account. This
information is useful in tracking war costs.
To provide Congress a better basis for oversight, DOD could:
• provide estimates of the allocations of all budget authority provided for OIF and
OEF by account, and compare requests to outlays to date;
• provide past, current, and future estimates of deployed average troop strength –
– for each operation, and explain how troop strength relates to military personnel
and O&M requests, and how that changes as troop levels increase or decrease;
• set up separate appropriation accounts for war funding to create visibility on
outlays and increase accuracy;
• explain the rationale and assumptions underlying procurement requests
segregating funding by operation and by goals – reset requirements related to
replacing combat losses, worn-out equipment not repairable, and other goals such
as force protection explaining the rationales, as well as tracking amounts spent;
• show how funding in prior war appropriations may reduce DOD’s baseline
requests by funding maintenance or procurement earlier than anticipated;
• estimate future costs under various scenarios.
In its Section 9010 report, the Iraq Metrics Report, and Section 1231 Report on Progress Toward
Security and Stability in Afghanistan, the Administration provides Congress with fairly detailed

78 Ibid, p. 5 and p. 59ff and Congressional Record, July 1, 2010, pp. H5358-H5407.
79 See testimony to House Budget Committee, October 24, 2007, July 31, 2007, and testimony to Subcommittee on
National Security, Emerging Threats and International Affairs, House Government Reform, July 18, 2006.
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reporting on trends and various metrics for success – ranging from average daily hours of
electrical power by province to average weekly attacks on civilians, the size and training levels of
Afghan and Iraq Security Forces. These measures, however, are not related to changes in U.S.
military costs, which is also not one of the metrics included. Detailed reporting of different
military costs and troop levels could be another metric for assessing operations in Iraq,
Afghanistan and other counter terror operations.80


80 H.Rept. 109-72, p. 97; DOD, Section 9010 Report to Congress, “Measuring Stability and Security in Iraq”
http://www.defenselink.mil/pubs/iraq_measures.html.
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Appendix A. Monthly Boots on the Ground in Iraq and Afghanistan
Table A-1. Boots on the Ground in Iraq and Afghanistan by Month
September 2001-September 2010
Jan
Feb
Mar Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2001
Afghanistan

0 0 0 0
Iraq

0 0 0 0
Both

0 0 0 0
2002
Afghanistan 4,100 4,200 5,000 6,600 6,900 7,300 8,900 9,500 10,400 10,500 10200 9,700
Iraq
0 0 0 0 0 0 0 0 0 0 0 0
Both
4,100 4,200 5,000 6,600 6,900 7,300 8,900 9,500 10,400 10,500 10200 9,700
2003
Afghanistan 9,800 9,500 11,450 9,300 9,900 10,900 10,900 12,700 9,800 12,100 12,000 13,100
Iraq
0
0
0 93,900 145,700 147,400 149,400 146,000 130,300 136,900 131,300 123,700
Both
9,800 9,500 11,450 103,200 155,600 158,300 160,300 158,700 140,100 149,000 143,300 136,800
2004
Afghanistan 13,500 12,300 14,100 19,500 17,700 17,800 17,400 15,700 16,800 17,500 17,800 18,300
Iraq
126,900 108,400 119,600 131,700 139,800 144,300 140,600 126,800 137,700 134,600 135,900 142,600
Both
140,400 120,700 133,700 151,200 157,500 162,100 158,000 142,500 154,500 152,100 153,700 160,900
2005
Afghanistan 18,700 20,300 20,900 19,500 20,000 19,200 21,100 17,400 18,000 17,800 17,400 18,500
Iraq
152,300 161,200 147,800 147,900 140,000 141,100 139,300 139,200 143,700 150,000 159,800 156,200
Both
171,000 181,500 168,700 167,400 160,000 160,300 160,400 156,600 161,700 167,800 177,200 174,700
2006
Afghanistan 20,300 22,700 20,000 23,300 21,800 22,300 20,800 19,700 20,400 19,800 20,500 21,800
Iraq
155,100 139,300 133,500 132,500 132,300 130,300 127,300 133,500 143,400 142,600 151,200 136,900
Both
175,400 162,000 153,500 155,800 154,100 152,600 148,100 153,200 163,800 162,400 171,700 158,700
CRS-42


Jan
Feb
Mar Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2007
Afghanistan 26,000 24,800 24,400 23,900 26,400 23,800 24,000 24,000 24,500 24,400 24,800 24,600
Iraq
131,500 138,300 141,200 147,900 147,400 152,500 159,600 161,400 169,000 164,700 170,300 165,700
Both
157,500 163,100 165,600 171,800 173,800 176,300 183,600 185,400 193,500 189,100 195,100 190,300
2008
Afghanistan 27,000 28,000 28,800 33,100 35,600 34,000 33,700 34,200 33,500 33,000a 33,000a 32,500
Iraq
160,200 158,100 160500 152,300 158,900 153,300 147,400 145,100 146,800 147,650a 148,075a 148,500
Both
187,200 186,100 189,300 185,400 194,500 187,300 181,100 179,300 180,300 180,650a 181,075a 181,000
2009
Afghanistan 32,800 35,900 38,350 39,000 44,700 55,100 56,500 62,600 62,300 65,800 67,500 69,000
Iraq
144,100 146,400 141,300 139,400 134,100 134,500 132,300 132,600 129,200 120,300 119,300 114,300
Both
176,900 182,300 179,650 178,400 178,800 189,600 188,800 195,200 191,500 186,100 186,800 183,300
2010
Afghanistan 70,200 74,600 85,000 87,600 89,700 91,775 95,925b 95,920b 98,000b


Iraq
112,400 101,100 95,900 98,850 94,250b 92,000b 78,000b 64,000b 50,000b


Both
182,600 175,700 180,900 186,450 178,760b 171,070b 163,380b 155,690b 148,000b



Sources: DOD, Joint Staff, Summary and Monthly Boots on the Ground Reports to Congress; for troops in country through August 2009; interpolated for October and
November 2008 and August 2009 because not reported. Estimates for Afghanistan reflect Figure 6-2, “Force Level Assumptions in DoD Budgets,” in DOD, FY2011 Budget
Request: Overview, Feb. 1, 2010; http://comptrol er.defense.gov/defbudget/fy2011/FY2011_Budget_Request_Overview_Book.pdf.
Notes: Estimates for Iraq reflect DOD press conference cited above.
a. DOD did not send Congress reports for Oct. and Nov. 2008 so CRS interpolated these months.
b. CRS estimates for the rest of FY2010 reflect DOD plans for average strength of 84,000 in Afghanistan. CRS estimates for Iraq are based on a DOD, Press Conference
of January 27, 2010, where he said that shortly after the elections (on March 7, 2010), “ there’s going to be a pretty steep drop-off to get down to basical y six advise-
and-assist brigades, under 50,000 forces.” U.S. Status of Forces agreement with Iraq requires that U.S. forces in Iraq are down to 50,000 by August 31,2010; see also,
CRS estimates the months from June to September 2010 by distributing the difference between the reported May 2010 level and the September 2010 endpoint of
50,000 non-combat troops for Iraq and the same method for Afghanistan, distributing the difference between the May 2010 report and the September goal of 98,000.

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The Cost of Iraq, Afghanistan, and Other Global War on Terror Operations Since 9/11

Appendix B. War Appropriations by Public Law and
Agency

The table below shows enacted appropriations by act from FY2001-FY2011 Supplemental.81
Table B-1. Defense Department, Foreign Operations Funding, and VA Medical
Funding for Iraq, Afghanistan and Other Global War on Terror Activities,
FY2001-FY2010 Supplemental
(in billions of dollars of budget authority)
Public
Date
DOD
State/
VA
Name of Law
Law No.
Enacted Funds
USAID
Medical Total
cost
FY2001 Emerg. Supp. Approp. Act for Recovery P.L. 107-38
9/18/01
13.6 0.3 0 13.9
from and Response to Terrorist Attacks on the
United States
FY2002 Dept. Of Defense and Emergency
P.L. 107-117
1/10/02
3.4
0 0 3.4
Terrorism Response Act
FY2002 Emergency Supplemental
P.L. 107-206
8/2/02
13.8 0.4 0 14.1
FY2002 Regular Foreign Operations
P.L. 107-115
1/10/02
0.0 0.2 0 0.2
FY2003 Consolidated Appropriations
P.L. 108-7
2/20/03
10.0 0.4 0 10.4
FY2003 Emergency Supplemental
P.L. 108-11
4/16/03
62.6 3.4 0 66.0
FY2003 DOD Appropriationsa P.L.
107-248
10/23/02
7.1
0 0 7.1
FY2004 DOD Appropriations Acta P.L.
108-87
9/30/03 -3.5
0
0
-3.5
FY2004 Emergency Supplemental
P.L. 108-106
11/6/03 64.9 21.2
0
86.1
FY2004 Foreign Operations Appropriations
P.L. 108-199
1/23/04
0
0.5
0
0.5
FY2005 DOD Appropriations Act
P.L. 108-287
8/5/04
25.0
0.7
0
25.7
FY2005 DOD Appropriations Actc
P.L. 108-287
8/5/04
2.1
0
0
2.1
FY2005 Consolidated Approps.
P.L. 108-447
12/8/04
0
1.0
0
1.0
FY2005 Supplemental Approps.d
P.L. 109-13
5/11/05
75.9
3.1
0
79.0
FY2006 Interior & Rel. Ag. Approps.e P.L.
109-54
8/2/05
0 0 0.2
0.2
FY2006 Foreign Operations Approps.
P.L. 109-102
11/14/05
0 1.0
0 1.0
FY2006 Science, State, & Rel. Agencies
P.L. 109-108
11/22/05
0 0.1
0 0.1
Appropriations Act
FY2006 Military Quality of Life & Veterans
P.L.
109-114
11/30/05
0 0 0.4
0.4
Affairse
FY2006 DOD Approps Act
P.L. 109-148
12/30/05 50.0
0
0
50.0
FY2006 DOD Appropriations Actc P.L.
109-148
12/30/05
0.8
0 0 0.8

81 Totals reflect budget authority for war-related expenses from appropriations and transfers, and exclude contingent
appropriations not approved, rescissions that do not affect war-related funds, non-war-related funds included in
supplementals, and transfers that were later restored in supplemental appropriations.

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Public
Date
DOD
State/
VA
Name of Law
Law No.
Enacted Funds
USAID
Medical
Total cost
FY2006 Emergency Supplemental
P.L. 109-234
6/15/06
66.0 3.2 0 69.2
FY2007 DOD Appropriations Actb P.L.
109-289
9/29/06 70.5
0
0
70.5
FY2007 Continuing Resolutionf P.L.
110-5
2/15/07
0 1.3 0.6 1.8
FY2007 Supplemental
P.L. 110-28
5/25/07
94.5 3.8 0.4 98.7
FY2008 Continuing Resolution
P.L. 110-92
9/29/07
5.2
0 0 5.2
FY2008 DOD Appropriations Act
P.L. 110-116
11/13/07 11.6
0
0
11.6
FY2008 Consolidated Approps. Act
P.L. 110-161
12/26/07
70.0 2.3 0.9 73.2
FY2008 Supplemental Approps. Actg P.L.
110-252
6/30/08
157.9 5.0 0.4
163.2
FY2009 Consolidated Security, Disaster
P.L.
110-329
9/30/08
2.5 0 1.5 4.0
Assistance, and Continuing Appropriations Act
FY2009 Omnibus Appropriations Act
P.L. 111-8
3/11/09
0
1.1
0
1.1
FY2009 Supplemental Appropriations Act
P.L. 111-32
6/24/09
80.0
2.5
0
82.5
FY2010 Consolidated Appropriations Act
P.L. 111-117
12/16/09
1.4
4.8
2.0
8.2
FY2010 DOD Appropriations Act, Title IX
P.L. 111-118
12/19/09
127.3
0
0
127.3
FY2010 Supplemental
P.L. 111-212
7/27/10
30.8
3.4
0
34.2
Subtotal


1,043.3 59.3 6.3
1,109.0
Unidentified Transfersh
unknown
unknown
2.2
0 0 2.2
FY2003 Transfersh
various
NA 1.2
0 0 1.2
FY2004 Transfersh
various
NA 5.7
0 0 5.7
FY2005 Transfersh
various
NA 1.5
0 0 1.5
Subtotal Transfersh


10.6 0 0 10.6
Total Enacted (w/transfers)
NA NA
1,054.0 59.3 6.3
1,119.6
Source: CRS calculations based on public laws, reports, explanatory statements, and DOD documents.
Notes: NA = Not applicable. Numbers may not add to totals due to rounding. DOD’s regular appropriations
bills included a separate Title IX for additional emergency appropriations for war costs from FY2005 – FY2010
to “bridge” the gap between the beginning of the fiscal year and passage of a supplemental.
a. FY2003 Appropriations Act included $7.1 billion in regular FY2003 defense appropriations for GWOT that
DOD cannot track; the FY2004 DOD Appropriations Act rescinded $3.5 billion in FY2003 war monies.
b. Title IX funds in FY2005 do not include a $1.8 billion scoring adjustment that reverses the previous
rescission of FY2004 funds because this did not change wartime monies.
c. Reflects funds obligated for Operation Noble Eagle from DOD’s regular appropriations as reported by the
Defense Finance Accounting Service.
d. Excludes funds for Tsunami relief.
e. Includes VA medical funds for Iraq and Afghan veterans in emergency funding in Interior bill and in regular
VA appropriations.
f.
State Department figures for foreign and diplomatic operations; CRS estimates for VA medical.
g. The FY2008 Supplemental included funds for both FY2008 and bridge funds for FY2009.
h. CRS calculations of transfers from DOD’s regular appropriations to war funding based on DOD’s 1414
reports on prior approval reprogrammings, and other sources. From DOD documents, it appears that
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DOD transferred about $2.0 billion from its baseline funds to prepare for the Iraq invasion during the
summer and fal of 2002 but the source of those funds is not identified.
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Appendix C. Estimating War Costs for Iraq and
Afghanistan

The figures in the tables in this report largely reflect DOD’s monthly and cumulative Cost of War
reports, which track war obligations (contracts signed, orders placed, and military and civilian
personnel paid) for Operation Iraqi Freedom (OIF), and Operation Enduring Freedom
(Afghanistan), and DOD estimates of its request. CRS has made certain adjustments to include
some items that DOD does not capture in its war cost reports (e.g., national intelligence), and to
exclude some funding provided in supplementals not linked to ongoing operations like childcare
centers or barracks improvements.82 Starting in 2009, DOD improved its cost of war reporting to
include listing those items that it excludes as not war-related, and tracking transfers between
accounts. For these reasons, the total funding levels in this report are not necessarily the same as
those reported for supplemental appropriations acts.
CRS uses budget justification material and other data from the State Department for diplomatic
operations and USAID programs, and from the Veterans Administration for VA medical costs for
OEF/OIF veterans to compile the total funding for war-related activities in Afghanistan and Iraq.
CBO has also estimated total war funding, excluding some funds appropriated in supplementals
that are not war-related. CRS and CBO estimates are generally close.83
GAO has raised questions about whether DOD war cost reporting accurately captures the split
between Afghanistan and Iraq, noting that the services have considerable difficulty in allocating
funds between the two operations, and have tended to overstate the amounts attributable to Iraq
“since it is viewed as the larger of the two operations ... ”84 This is particularly the case with
procurement funding which peaked in FY2008 at over $60 billion.
Judging the overall accuracy of DOD-reported war obligations is problematic because other
sources are not available.

82 See for example, Table 1 in FY2009 Supplemental Justification, DOD, Overseas Contingency Operations Request,
FY2009 Supplemental: Summary Justification Material, April 2009;
http://www.defenselink.mil/comptroller/defbudget/fy2009/Supplemental/FY2009_Supplemental_Request/pdfs/
FY_2009_Supplemental_Request_04-08-09.pdf. In some cases, CRS and DOD differ about what is considered to be
war-related. For example, DOD excludes Congressional adds for C-17 aircraft, a transport aircraft that has seen heavy
use in Afghanistan and Iraq. CRS includes those funds on the basis that additional purchases may be needed because
aircraft may not last as long as anticipated because of their heavy use. CRS war cost estimates also exclude funding in
supplementals for other emergency programs such as additional food aid, military and economic assistance to Pakistan,
and foreign assistance activities in several African countries.
83 See for example, Box 1-1, CBO, The Budget and Economic Outlook: An Update, September 2008, p. 13. For DOD,
see Office of the Secretary of Defense, Comptroller, “Cost of War Update as of February 28, 2009,” p. 6. DOD
justification material for its FY2007 and FY2008 war requests shows that budget authority for war fell $2 billion short
in FY2001 and $4 billion short in FY2004—a gap presumably met by transferring funds from its regular
appropriations. CRS added $2 billion to its estimates to reflect these funds. Specifically, CRS calculations of DOD
funding include some $5 billion appropriated for GWOT in FY2003 in P.L. 107-48, and about $10 billion in transfers
from DOD’s baseline appropriations that were transferred to meet war needs, as well as intelligence and other funding
not tracked by DOD.
84 GAO, Global War on Terrorism: DOD Needs to More Accurately Capture and Report the Costs of Operation Iraqi
Freedom and Operation Enduring Freedom. GAO-09-302, March 17, 2009, p. 17, see discussion, p. 15-17.
http://www.gao.gov/new.items/d09302.pdf.
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Appendix D. Reset and Higher Force Levels
Another major war cost issue that has arisen and may re-surface is the amount of funds needed to
“reset” or restore the services’ equipment to pre-war levels. The largest single reason for the
increase in war costs between FY2004 and FY2008 was the amount requested and received by
DOD for reset. While repair and replacement costs might be expected to grow over time as
operations wear down equipment, much of the growth from FY2006-FY2008 reflects a policy
decision to broaden the definition of what was considered a war-related cost.85
If the FY2010 supplemental is approved, DOD will have requested and received about $151
billion for reset, defined as the “process of bringing a unit back to full readiness once it has been
rotated out of a combat operation,” by repairing and replacing equipment and resting and
retraining troops.86 Another $21 billion is requested in FY2011. Generally, about half of this
funding has been for repair and half for purchasing new equipment.
DOD Changes Definition of War Costs
From the mid 1990s until 2006, DOD’s financial regulations defined the cost of contingencies to
include only incremental costs directly related to operations. Until October 2006, that guidance
was largely used by the services to prepare their estimates for Iraq and GWOT. The guidance
required that the service show assumptions about troop levels, operational tempo, and
reconstitution and limit requests to incremental costs—“that would not have been incurred had
the contingency operation not been supported.” Investment requests are also to be incremental
and included “only if the expenditures were necessary to support a contingency operation.”87
(Little of this information was provided to Congress in DOD’s requests.) The services are to
repair equipment if economical or replace it if replacement costs almost as much as repair.
In the July 19, 2006 guidance to the services for developing the FY2007 Supplemental and
FY2008 war cost requests, these strictures were reiterated. That guidance also prohibited
including Army modularity “because it is already programmed in FY2007 and the outyears,” and
warned that the services would have to demonstrate that investment items were “directly
associated with GWOT operations,” rather than to offset “normal recurring replacement of

85 CRS, Statement of Amy Belasco before the House Budget Committee, “The Growing Cost of the Iraq War,” October
24, 2007 http://budget.house.gov/hearings/2007/10.24Belasco_testimony.pdf.
86 For total through FY2008, see Center for Strategic and Budgetary Assessments, Steve Kosiak, Cost of Wars in Iraq
and Afghanistan and Other Military Operations
, 12-15-08; http://www.csbaonline.org/4Publications/PubLibrary/
R.20081215.Cost_of_the_Wars_i/R.20081215.Cost_of_the_Wars_i.pdf; for FY2009, see Table 5-11 in DOD, Fiscal
Year 2010: Summary Justification
, May 2009;
http://www.defenselink.mil/comptroller/defbudget/fy2010/fy2010_SSJ.pdf; for FY2010 and FY2011, see Table 8-5 in
DOD, FY2011 Budget Request: Overview, Feb. 1, 2010; http://comptroller.defense.gov/defbudget/fy2011/
FY2011_Budget_Request_Overview_Book.pdf.
For definition, see Office of the Secretary of Defense, Report to Congress, Ground Force Equipment Repair, Replacement,
and Recapitalization Requirements Resulting from Sustained Combat Operations
, April 2005, p. 8; see also GAO-06-604T,
Defense Logistics: Preliminary Observations on Equipment Reset Challenges and Issues for the Army and Marine Corps, p.
3.
87 DOD, Financial Management Regulations, Chapter 12, Sec. 23, “Contingency Operations,” p. 23-11ff, 23-21, 23-25,
23-27; http://www.dod.mil/comptroller/fmr/12/12_23.pdf.
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equipment.”88 In addition, the services would have to show that reset plans were executable in
FY2007, presumably the last several months of the fiscal year.
On October 25, 2006, Deputy Secretary of Defense Gordon England issued guidance for
requesting war funds to the services, requiring them to submit new requests within two weeks that
reflected the “longer war on terror” rather than strictly the requirements for war operations in
Iraq, Afghanistan and other counter-terror operations.89 Such a substantial change would be
expected to reflect guidance from the Secretary of Defense, the Office of Management and
Budget, and the President. This new definition appeared to have paved the way for including a far
broader range of requirements particularly since the needs of the “longer war” were not defined.
Since the war on terror is now considered part of DOD’s national strategy, some might argue that
these types of expenses should be included in DOD’s regular budget where they would compete
with other defense needs.90
Front Loading Reset Funding
The FY2007 Supplemental included an additional $14 billion for reset—the replacement of war-
worn equipment. DOD’s request appeared to front load (or fund in advance) DOD’s reset
requirements, a fact acknowledged by then-OMB Director Robert Portman in recent testimony.91
According to DOD figures, Army and Marine Corps reset requirements were fully met in the
enacted FY2007 fund when Congress provided $23.7 billion for Army and Marine Corps reset
costs, the amount that the services said was needed.92
As substantial amounts of equipment were sent back to the United States for repair, the Army and
Marine Corps could compare its previous estimates with experience. The FY2007 Supplemental
and the FY2008 war request both appear to include an extra year of Army and Marine Corps reset
requirements. According to 2007 statements by Army Chief of Staff, General Peter J.
Schoomaker, and other military spokesman, Army reset is estimated to be $12 billion to $13
billion a year as long as the conflict lasts at the current level and “for a minimum of two to three
years beyond.”93 According to 2006 testimony by Marine Corps Commandant, General Michael

88 Under Secretary of Defense, Memorandum for Secretaries of the Military Departments, “Fiscal Year (FY) 2008-
2013 Program and Budget Review,” July 19, 2006, p. 34-49, specifically p. 36, 39, 41.
89 Deputy Secretary of Defense Gordon England, Memorandum for Secretaries of the Military Departments, “Ground
Rules and Process for FY’07 Spring Supplemental,” October 25, 2006.
90 See Chapter III, pp 19ff in The White House, “National Security Strategy,” May 2010;
https://digitalndulibrary.ndu.edu/cdm4/document.php?CISOROOT=/strategy&CISOPTR=8929&REC=1;
See Chapter III in The White House, “The National Security Strategy of the United States of America,” March 2006;
https://digitalndulibrary.ndu.edu/cdm4/document.php?CISOROOT=/strategy&CISOPTR=5286&REC=2.
91 Testimony of OMB Director Robert Portman before the House Budget Committee, Hearing on the FY2008 DOD
Budget
, February 6, 2007, p. 41 of transcript.
92 See table inserted by Senator Stevens in Congressional Record, August 2, 2006, p. S8571 showing $23.7 billion for
reset, including $14 billion in procurement; total funded also provided $4.9 billion for unfunded FY2006 requirement;
see also DOD’s Report to Congress, Long-Term Equipment Repair Costs, September 2006.
93 Statement of Peter J. Schoomaker, Chief of Staff, Department of the Army, before the House Armed Services
Committee, “Reset Strategies for Ground Equipment and Rotor Craft,” June 27, 2006, p.2; see also testimony of
Brigadier General Charles Anderson, U.S. Army, House Armed Services Subcommittee on Readiness and
Subcommittee on Air and Land Forces Hold, transcript, “Joint Hearing on Costs and Problems of Maintaining Military
Equipment in Iraq,” January 31, 2007, p. 6.
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Hagee, their requirements are about $5 billion a year for a total of about $17 billion for the two
services most heavily affected.94 It is not clear whether these estimates are or remain valid.
DOD estimated that reconstitution would total $37.5 billion in FY2007 and $46 billion in
FY2008, which was largely supported by Congress in FY2007.95 The front loading of
requirements may have been an attempt by the services to avoid being in the position of
requesting reset funds after U.S. troops started to withdraw. While Congress endorsed most of the
repair piece of reconstitution (funded in O&M) in the $70 billion FY2008 fund, only $6 billion of
procurement monies related to reconstitution was included.96
Carryover of DOD War Investment Funding
DOD’s procurement requests for reconstitution may be less urgent than apparent because DOD
has carried a substantial amount of war-related investment funds from previous appropriations –
for example, a $45 billion carryover from previous years that had not been obligated or placed on
contract – as of the beginning of FY2008.97 Because investment funding is available for two to
three (RDT&E for two years, procurement and military construction for three years), some of the
funds may be obligated beyond the first year as contracts are written and processed.
DOD continues to have a substantial backlog of unobligated procurement monies. For example,
DOD received $6 billion in P.L. 110-252 on June 30, 2008, and $25.8 billion in June 24, 2009 for
FY2009 war-related procurement. As of April 30, 2010, about 40% of FY2009 procurement funds
remain unobligated.98
Accuracy and Expansion of Reconstitution Requests
Although reset requirements reflect the stress on equipment from operations, it is not clear that
the services checked the accuracy of previous estimates. In 2007, GAO testified that the Army,
with the largest reset requirement, could not track reset or ensure that funds appropriated for reset
were in fact spent for that purpose, making it more difficult to assess the accuracy of DOD’s
requests.99 In addition, presumably much of the equipment that is being repaired because of war
operations, was originally slated for repair or replacement at a later date, and so is being repaired
or replaced sooner than anticipated. That could mean DOD’s baseline budget could be reduced to
offset war funding already provided.

94 Testimony of General Michael Hagee, Marine Corps Commandant before the House Armed Services Committee,
“Army and Marine Corps Reset Strategies for Ground Equipment and Rotor Craft,” June 27, 2006, p. 41.
95 DOD, FY2008 Global War on Terror Request, February 2007, Table 3; http://www.dod.mil/comptroller/defbudget/
fy2008/fy2007_supplemental/FY2008_Global_War_On_Terror_Request.pdf hereinafter, DOD, FY2008 GWOT
Request.

96 Congress also provided $16.8 billion to buy and support MRAPS, a force protection request not related to
reconstitution; see December 18, 2007 Congressional Record, p. S15858 for procurement items funded in the FY2008
included in Division L of the FY2008 Consolidated Appropriations Act.
97 CRS, Statement of Amy Belasco before the House Budget Committee, “The Rising Cost of the Iraq War,” October
24, 2007; http://budget.house.gov/hearings/2007/10.24Belasco_testimony.pdf.
98 CRS calculations based on DOD, “Cost of War Execution Report,” April 30, 2010.
99 GAO-07-439T, Testimony of William Solis before the Subcommittee on Readiness and Air and Land Forces, House
Armed Services Committee, January 31, 2007, p. 2 and 3.
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Reset requirements may also be uncertain because the number of troops and the nature of
operations may change. Service estimates of requirements have changed in recent years. In a
September 2006 report to Congress, for example, annual reset requirements in FY2008 were
estimated to be $13 billion for the Army and about $1 billion for the Marine Corps.100 Several
months earlier in the spring of 2006, the Army estimated that reset requirements would decrease
from $13 billion a year to $10.5 billion a year for the next two years and then decline to $2 billion
a year if troops were withdrawn over a two-year period.101
A year earlier, in March 2005, CBO estimated that annual repair and replacement costs would run
about $8 billion a year based on the current pace of operations and service data.102 In a 2007
report, CBO estimated that 40% of the Army’s war requests were not directly for reset needs.103
More recently, use of equipment in Iraq may be less intense than previously as U.S. troops
predominantly adopt advisory and assistance rather than combat roles.
DOD’s earlier definition of reset included not only replacing battle losses (typically about 10% of
the total), equipment repair (about half of the total), and also recapitalization that typically
upgrades current equipment, and repair and replacement of prepositioned equipment stored
overseas that has been tapped to meet war needs. The Army had been planning to recapitalize
equipment and modernize prepositioned equipment stocks to match the new modular designs as
part of its ongoing modernization. For this reason, the case for these expenses as incremental
wartime requirements has proven questionable.
Modularity as an Emergency Expense
The distinction between war-related and regular funding was also been made murky by DOD
requests to treat conversion of Army and Marine Corps units to new standard configurations—
known as modularity and restructuring—as a war requirement. In a 2007 report, for example, the
Army acknowledged that “since modularity requirements mirror the equipment requirements the
Army already procures for its units, the ability to precisely track modularity funds is lost.”104
At DOD’s request, Congress agreed to provide $5 billion in the FY2005 and in FY2006
supplementals for converting units with the understanding that DOD would move these funds
back to its regular budget in later years. The FY2007 Supplemental again included $3.6 billion to
convert two Army brigade teams and create an additional Marine Corps regimental combat team,
highlighting the issue of whether funds within DOD’s regular requirements are being shifted to
emergency funding. The FY2008 war request also included $1.6 billion to accelerate the creation
of more modular brigades plus additional funds for equipping them.105

100 Office of the Secretary of Defense, Report to the Congress, “Long-Term Equipment Repair Costs,” September 2006,
p. 24 and p. 25.
101 Army Briefing, “Army Equipment Reset Update,” May 18, 2006, p. 8.
102 CBO Testimony by Douglas Holtz-Eakin, Director, “The Potential Costs Resulting from Increased Usage of
Military Equipment in Ongoing Operations,” before the Subcommittee on Readiness, House Armed Services
Committee April 6, 2005, p. 2.
103 CBO, Replacing and Repairing Equipment Used In Iraq and Afghanistan: The Army’s Reset Program by Frances
M. Lussier, September 2007; http://www.cbo.gov/showdoc.cfm?index=8629&sequcence=0&from=7, p. ix.
104 Secretary of the Army, “Sec. 323 report required by the FY2007 National Defense Authorization Act, P.L. 109-
364,” February 14, 2007, p. 4.
105 DOD, FY2008 Global War on Terror Amendment, October 2007, http://www.defenselink.mil/comptroller/
(continued...)
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DOD argued that these costs should be considered war-related because having more modular
units makes it easier to rotate units to the war zone and hence would extend the time between
deployments giving soldiers more time at home, or “dwell time,” and hence improving readiness.
This conclusion has been questioned in studies by CBO and RAND. Both studies found that
modularity would only marginally improve rotation schedules. CBO estimated that the Army’s
modularity initiative would only make available an additional 6,000 to 7,000 troops.106 DOD does
not estimate the effect of either its previous or new funding for modularity on the amount of time
soldiers have at home between deployments.
Congress included the funds in the FY2005 and FY2006 war appropriations acts with some
reluctance (effectively giving the Army more room in its regular budget for two years) based on
an understanding with DOD that this funding would return to the regular budget after FY2006
and that $25 billion was set aside for the Army in future years to cover these costs.107 Congress
appears to have approved these costs in FY2007 as well.
Growing the Force as a War Cost
Previously, Congress has provided funding to cover “overstrength” or the cost of recruiting and
retaining additional personnel above the Army’s pre-war end strength of 482,000 and the Marine
Corps end strength of 175,000. DOD has argued that these increases were required to reduce the
stress on forces and that the increases would be temporary. In January 2007, the President
announced plans to permanently increase the size of the Army and Marine Corps by 92,000 over
the next six years including the almost 30,000 additional personnel already on board.
The FY2007 Supplemental included $4.9 billion to cover the military personnel cost of additional
troops plus $1.7 billion for equipment and infrastructure for the forces to be added in FY2007.
DOD promises that funding to equip future increases in the force would be funded in the regular
budget starting in FY2009.
In a reversal of its previous position, DOD argued that the Army and Marine Corps need to be
permanently expanded by 92,000 by 2012. The President’s proposal marks a major change and
appears to assume that the United States needs to be able to deploy substantial numbers of troops
on a permanent basis. CBO estimates that adding two divisions to the Army—roughly equivalent
to the President’s proposal—would require an additional $108 billion between FY2008 and
FY2017, a major investment.108 With the new guidance adopted in February 2009 that restricts
war funding to costs strictly tied to overseas contingency operations, these would not be
considered appropriate war costs.

(...continued)
defbudget/fy2008/Supplemental/FY2008_October_Global_War_On_Terror_Amendment.pdf, p. 48 and 49.
106 The RAND study argued that the types of units created were not those most needed. RAND, Stretched Thin: Army
Forces for Sustained Operations
, 7-15-05; http://www.rand.org/pubs/monographs/2005/RAND_MG362.pdf. CBO, An
Analysis of the Military’s Ability to Sustain an Occupation in Iraq: an Update
, October 5, 2005; http://www.cbo.gov/
ftpdocs/66xx/doc6682/10-05-05-IraqLetter.pdf.
107 Program Budget Decision 753, “Other Secretary of Defense Decisions,” December 23, 2004, p. 1.
108 CBO, Budget Options, February 2007, p. 9-10 http://www.cbo.gov/ftpdocs/78xx/doc7821/02-23-
BudgetOptions.pdf.
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DOD is currently including as a war cost $1.4 billion to cover the cost of an additional 22,000
service members added by the Army and Navy to reduce the stress on deploying troops and offset
the effect of ending the policy of stop-loss, where deployed service members were retained
beyond their enlistment periods. DOD is presenting this as a temporary increase to be reversed as
withdrawals pick up pace in Iraq. Members could be concerned that this increase could end up
becoming permanent.

Author Contact Information

Amy Belasco

Specialist in U.S. Defense Policy and Budget
abelasco@crs.loc.gov, 7-7627


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