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May 9, 2018
The FY2019 Defense Budget Request: An Overview
The President’s FY2019 budget request includes $726.8 
It did not change the spending limits for FY2020 and 
billion for national defense, a major function of the federal 
FY2021. 
budget that includes funding primarily for Department of 
Defense Secretary James Mattis said if Congress allows 
Defense (DOD) programs but also for defense-related 
these caps to take effect, the newly crafted National 
activities administered by other federal agencies. 
Defense Strategy, which calls for the United States to 
National defense is one of 20 major functions used by the 
bolster its competitive military advantage, “is not 
Office of Management and Budget (OMB) to organize 
sustainable. The strategy is designed to protect America and 
budget data―and the largest in terms of discretionary 
our interests. I cannot provide you the same strategy. I 
spending. The national defense budget function (identified 
would have to go back and rewrite it. There would be 
by the numerical notation 050) comprises three 
reductions in what we are able to do.” 
subfunctions: DOD–Military (051); atomic energy defense 
activities primarily of the Department of Energy (DOE) 
DOD Budget 
(053); and other defense-related activities (054), such as 
Federal Bureau of Investigation counterintelligence 
Table 1. FY2019 DOD Budget Request by Title and 
activities. 
Funding Type 
(in billions of dollars) 
National Defense Budget 
The $726.8 billion national defense budget request includes 
FY2018-
FY2018-
$716.0 billion in discretionary spending and $10.8 billion in 
FY2019 
FY2019 
mandatory spending (s
ee Figure 1). The discretionary 
DOD Base 
FY2018 
FY2019 
$  
% 
spending is, for the most part, provided by the annual 
Title 
Enacted 
Request 
Change 
Change 
appropriations bill drafted by the House and Senate 
Personnel 
 141.5  
148.2 
 6.7  
4.7% 
Appropriations Committees. 
O&M 
 223.5  
234.2 
 10.7  
4.8% 
The $716.0 billion requested for national defense 
discretionary spending breaks down as follows: 
Procurement 
 134.1  
131.6 
 -2.6 
-1.9% 
  $686.1 billion for DOD (96% of the total); 
RDT&E 
 88.0  
91.1 
 3.1  
3.5% 
  $21.9 billion for atomic energy activities (3%); and  
Constructio
 8.7  
8.9 
 0.2  
2.1% 
  $8.0 billion for other defense-related activities (1%). 
n 
Of the total, $708.1 billion falls under the jurisdiction of the 
Housing 
 1.4  
1.6 
 0.2  
13.7% 
House and Senate Armed Services Committees and is 
Rev. Funds 
 1.7  
1.5 
 -0.1 
-8.5% 
subject to authorization by the annual National Defense 
Authorization Act (NDAA). The remaining $7.9 billion 
Subtotal 
 598.9 
617.1 
 18.2  
3.0% 
falls under the jurisdiction of other congressional 
committees. 
OCO 
 65.9  
69.0 
 3.1  
4.7% 
Emergency 
 5.8  
 
 -5.8 
-100.0% 
In Line with Revised Budget Cap 
The President’s budget request conforms to the spending 
DOD Total 
 670.6  
686.1 
 15.4  
2.3% 
limits (or caps) established by the Budget Control Act of 
Sources: Department of Defense, 
Defense Budget Overview, Table A-
2011 (BCA; P.L. 112-25) and amended by the Bipartisan 
4: DOD Base Budget by Appropriation Title, published February 12, 
Budget Act of 2018 (BBA of 2018; P.L. 115-123). 
2018; Office of Management and Budget, 
FY2019 Budget Amendments, 
Attachment, at https://www.whitehouse.gov/wp-content/uploads/
The request for national defense discretionary spending 
2018/04/FY_2019_Budget_Amendment_Package.pdf#page=114; 
includes $647 billion in base budget spending and $69 
Congressional Budget Office scoring tables for the Consolidated 
billion in funding for Overseas Contingency Operations 
Appropriations Act, 2018 (P.L. 115-141), continuing appropriations 
(OCO). Because the caps do not apply to spending that is 
(P.L. 115-96), and Bipartisan Budget Act of 2018 (P.L. 115-123). 
designated for OCO or for emergency purposes, the request 
Notes: 2019 figures from the DOD and OMB sources cited above; 
is in line with the limits enacted February 9, 2018, under 
2018 figures based on CBO scoring tables for P.L. 115-141 and CRS 
the BBA of 2018. 
analysis of P.L. 115-96 and P.L. 115-123.
The legislation increased the defense discretionary spending 
cap to $647 billion in FY2019, an increase of $85 billion, or 
15%, over the previous $562 billion cap. 
https://crsreports.congress.gov 
 link to page 1 

The FY2019 Defense Budget Request: An Overview 
Figure 1. FY2019 National Defense Budget Request 
(in billions of dollars of budget authority) 
 
Source: Office of Management and Budget (OMB), Analytical Perspectives, Table 26-1. 
Budget Authority and Outlays by Function, Category, and 
Program, at https://www.whitehouse.gov/wp-content/uploads/2018/02/26-1-fy2019.pdf.  
Selected Highlights 
The $686.1 billion in discretionary spending for DOD 
includes $617.1 billion for the base budget (that is, for the 
Personnel/Policy 
most part, activities DOD would pursue even if U.S. forces 
  
16K More Military Personnel. The request includes 
were not engaged in combat) and $69.0 billion for the OCO 
funding to expand the military to 1.34 million active-
budget (the incremental cost of those military operations). 
duty personnel and 817,700 Guard and Reserve 
personnel, an increase of 15,600 and 800, respectively, 
Budget Comparisons 
from the FY2018 enacted level. 
The FY2019 DOD discretionary budget of $686.1 billion, 
  
Increased Force Levels. The request assumes a force 
including base and OCO funding, represents an increase of 
level of 11,958 personnel in Afghanistan, 5,765 in Iraq 
$15.4 billion (2.3%) over the enacted FY2018 amount (see 
and Syria, 59,463 for in-theater support, and 16,610 for 
Table 1). The FY2019 DOD discretionary base budget of 
other mobilization, for a total of 93,796, an increase of 
$617.1 billion represents an increase of $18.2 billion (3.0%) 
3,153 troops, or 3.5%, over the FY2018 request. 
over the enacted FY2018 amount. The FY2019 DOD OCO 
  
2.6% Military Pay Raise. The request calls for a 2.6% 
budget of $69 billion represents an increase of $3.1 billion 
military pay raise, the largest since 2010 and in keeping 
(4.7%) over the enacted FY2018 amount. 
with private-sector wage growth. 
OCO Funding Shift 
The Administration’s initial FY2019 DOD budget request, 
Weapons/Equipment 
  
Aircraft. The request includes $10.7 billion in funding 
released on February 12, 2018, included $89.0 billion 
for 77 F-35 Joint Strike Fighter jets, $3.0 billion for 15 
designated for OCO. In a budget amendment published 
KC-46A refueling tankers, and $2.2 billion for 10 P-8A 
April 13, 2018, the Administration removed the OCO 
Poseidon maritime surveillance aircraft. 
designation from $20.0 billion of funding in its initial 
request, in effect, shifting that amount into the base budget 
  
Missile Defense/Nuclear Deterrence. The request 
request after Congress agreed to raise the spending caps. 
includes $9.9 billion for the Ballistic Missile Defense 
System, $3.7 billion for the Navy’s Columbia-class 
In a statement on the budget amendment, White House 
submarine program, and $2.3 billion for the Air Force’s 
Office of Management and Budget Director Mick 
future stealth bomber, the B-21 Raider. 
Mulvaney said the FY2019 budget request fixes “long-time 
budget gimmicks” in which OCO funding 
  
Ships. The request includes $7.4 billion for two 
has been used for 
base budget requirements. Beginning in FY2020, “the 
Virginia-class submarines and other program costs, $6.0 
billion for three Arleigh Burke-class destroyers, and 
Administration proposes returning to OCO’s original 
$1.8 billion for the Ford-class aircraft carrier. 
purpose by shifting certain costs funded in OCO to the base 
budget where they belong,” he wrote. 
  
Tactical Vehicles. The request includes $2.0 billion for 
5,113 Joint Light Tactical Vehicles.  
Brendan W. McGarry, Analyst in U.S. Defense Budget   
IF10887
https://crsreports.congress.gov 
The FY2019 Defense Budget Request: An Overview 
 
 
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