
 
Updated October 15, 2018
Taiwan: Select Political and Security Issues
Taiwan, which officially calls itself the Republic of China 
Taiwan’s Modern History  
(ROC), is an island democracy of 23 million people located 
China’s Qing Dynasty ceded Taiwan to Japan at the end of 
across the Taiwan Strait from mainland China. Since 
the First Sino-Japanese War in 1895. Taiwan was a 
January 1, 1979, U.S.-Taiwan relations have been 
Japanese colony for the next 50 years. The Republic of 
unofficial, a consequence of the Carter Administration’s 
China, which was founded in 1912 on mainland China and 
decision to establish diplomatic relations with the People’s 
led by the Kuomintang Party (KMT), assumed control of 
Republic of China (PRC) and break formal diplomatic ties 
Taiwan in 1945, after Japan’s defeat in World War II. In 
with self-ruled Taiwan, over which the PRC claims 
1949, after losing a civil war on mainland China to the 
sovereignty. The Taiwan Relations Act (TRA, P.L. 96-8; 22 
Communist Party of China, the KMT moved the seat of the 
U.S.C. 3301 et seq.), enacted on April 10, 1979, provides a 
ROC across Taiwan Strait to Taipei, while the Communists 
legal basis for this unofficial bilateral relationship. It also 
established the PRC on mainland China. As many as two 
includes commitments related to Taiwan’s security. 
million Chinese fled with the KMT to Taiwan.  
Trump Administration Policy 
On Taiwan, the KMT maintained authoritarian one-party 
After initially questioning the longstanding U.S. “one-
rule until 1987, when it began allowing political 
China” policy, President Donald J. Trump used a February 
liberalization. Current President Tsai Ing-wen’s Democratic 
9, 2017, telephone call with PRC President Xi Jinping to 
Progressive Party (DPP), founded in 1986, claims credit for 
recommit the United States to the policy, under which the 
a major role “in toppling the KMT’s one-party 
United States maintains only unofficial relations with 
dictatorship.” Taiwan held its first direct parliamentary 
Taiwan, while also upholding the TRA. The Trump 
election in 1992 and its first direct presidential election in 
Administration’s National Security Strategy, released in 
1996. The May 2016 inauguration of President Tsai marked 
December 2017, states that the United States “will maintain 
Taiwan’s third transfer of political power from one party to 
our strong ties with Taiwan in accordance with our ‘One 
another through a peaceful electoral process. In 2016, the 
China’ policy, including our commitments under the 
DPP also ended the KMT’s previously unbroken control of 
Taiwan Relations Act to provide for Taiwan’s legitimate 
Taiwan’s legislature. Taiwan is scheduled to hold local 
defense needs and deter coercion.”  
elections on November 24, 2018. 
In 2018, the Administration has taken steps widely seen as 
Long after the retreat to Taiwan, the KMT continued to 
supportive to Taiwan. In March 2018, the President signed 
assert that the ROC government was the sole legitimate 
into law the Taiwan Travel Act (P.L. 115-135), which states 
government of all China. In 1971, however, United Nations 
that it should be U.S. policy to allow U.S. officials at all 
General Assembly Resolution 2758 recognized the PRC’s 
levels to visit Taiwan. In May 2018, the White House Press 
representatives as “the only legitimate representatives of 
Secretary released a statement dismissing as “Orwellian 
China to the United Nations,” and expelled “the 
nonsense” and “political correctness” the PRC’s demand 
representatives of Chiang Kai-shek,” the ROC’s president 
that foreign airlines refer to Taiwan as part of China on 
at the time. Taiwan has remained outside the United 
their websites. In June 2018, Assistant Secretary of State 
Nations ever since. Taiwan today claims “effective 
for Education and Cultural Affairs Marie Royce led a U.S. 
jurisdiction” only over Taiwan, the archipelagos of Penghu, 
delegation to Taiwan for the dedication of a new complex 
Kinmen, and Matsu, and a number of smaller islands. ROC 
for the American Institute in Taiwan (AIT), the entity 
sovereignty claims also include disputed islands in the East 
through which the United States conducts its unofficial 
China Sea and South China Sea. 
relationship with Taiwan. Then-AIT Director Kin Moy 
U.S. Commitments Related to Taiwan 
presented the $255-million compound as “a tangible 
symbol that the United States is here to stay.”  
Four documents underpin U.S. policy on Taiwan: three 
joint communiqués concluded with the PRC in 1972, 1978, 
In August 2018, the White House criticized both the PRC 
and El Salvador for the latter’s 
and 1982, plus the 1979 Taiwan Relations Act. The key 
decision to break diplomatic 
commitments the U.S. government made to the PRC in the 
relations with Taiwan and establish relations with the PRC. 
three joint communiqués were that the United States would 
On October 4, 2018, in a major speech on China policy, 
recognize the PRC as the “sole legal government of China”; 
Vice President Mike Pence said the recent decisions by the 
acknowledge, if not endorse, “the Chinese position that 
Dominican Republic, El Salvador, and Panama to switch 
there is but one China and Taiwan is part of China”; and 
recognition to Beijing “threaten the stability of the Taiwan 
Strait.” Pence also stated that while the Trump 
maintain only unofficial relations with Taiwan. The United 
States considers Taiwan’s ultimate status 
Administration “will continue t
to be unresolved. 
o respect our One China 
Policy,…America will always believe Taiwan’s embrace of 
Passed by Congress in April 1979, after the termination of 
democracy shows a better path for all the Chinese people.” 
official relations with Taiwan, the Taiwan Relations Act 
provides the legal basis for unofficial relations. Key 
provisions include: 
https://crsreports.congress.gov 
Taiwan: Select Political and Security Issues 
  Relations with Taiwan shall be carried out through AIT, 
  Diplomatic: Six countries that previously recognized 
a non-profit corporation. (AIT Taipei performs many of 
Taiwan have established diplomatic relations with the 
the same functions as U.S. embassies around the world 
PRC: the Gambia, Sao Tome and Principe, Panama, the 
and is staffed by U.S. government personnel assigned or 
Dominican Republic, Burkina Faso, and El Salvador. 
otherwise detailed to AIT.)  
Taiwan retains diplomatic ties with 17 countries. 
  It is U.S. policy “to consider any effort to determine the 
  International space: The PRC blocked Taiwan’s 
future of Taiwan by other than peaceful means, 
attendance as an observer at the 2017 and 2018 annual 
including by boycotts or embargoes, a threat to the 
meetings of the World Health Assembly (WHA), the 
peace and security of the Western Pacific area and of 
governing body of the World Health Organization.  
grave concern to the United States.”  
  Military: The PRC has repeatedly dispatched military 
  It is U.S. policy “to maintain the capacity of the United 
aircraft to circumnavigate Taiwan and sent naval task 
States to resist any resort to force or other forms of 
forces into waters east of Taiwan. 
coercion that would jeopardize the security, or the social 
or economic system, of the people on Taiwan.” 
  Civil aviation: In January 2018, the PRC unilaterally 
 
announced new commercial aviation routes over the 
  The United States “will make available to Taiwan such 
Taiwan Strait, violating a 2015 agreement with Taiwan.  
defense articles and defense services in such quantity as 
  Judicial: In November 2017, PRC authorities sentenced 
may be necessary to enable Taiwan to maintain a 
a Taiwan activist, Lee Ming-che, to five years in prison 
sufficient self-defense capability.”  
for “subversion of state power,” the first time anyone 
The TRA does not require the United States to defend 
from Taiwan is known to have faced such charges. 
Taiwan, but does state that is U.S. policy to maintain the 
  Commercial: In 2018, the PRC stepped up demands that 
capacity to do so, creating “strategic ambiguity” regarding 
foreign airlines refer to Taiwan as part of China on their 
the U.S. role in the event of a PRC attack on Taiwan.  
websites. Most airlines have complied. 
The Six Assurances 
Taiwan’s Security 
The Trump Administration has stated that the U.S.-Taiwan 
relationship is also “guided” by “Six Assurances” that 
The United States terminated its Mutual Defense Treaty 
President Ronald Reagan communicated to Taiwan before 
with Taiwan in 1980, but still supports Taiwan’s military 
the announcement of the 1982 U.S.-PRC communiqué. 
through dialogues, training, and arms sales made on the 
They include an assurance that in the negotiations, the 
basis of the TRA. In June 2017, President Trump notified 
United States did not agree “to engage in prior 
Congress of seven major Foreign Military Sales (FMS) to 
consultations with Beijing on arms sales to Taiwan,” and 
Taiwan valued at $1.36 billion. In April 2018, the State 
did not agree to set a date for ending arms sales to Taiwan.  
Department issued licenses to allow U.S. firms to market 
The PRC, Taiwan, and “One China” 
technology to Taiwan for its indigenous submarine 
program. On September 24, 2018, the Trump 
The PRC maintains that mainland China and Taiwan are 
Administration notified Congress of an FMS case valued at 
parts of “one China” whose sovereignty cannot be divided. 
$330 million. In June 2018, Secretary of Defense Jim 
A 2005 PRC Anti-Secession Law commits Beijing to “do 
Mattis said that the United States “remains steadfastly 
its utmost with maximum sincerity to achieve a peaceful 
committed” to Taiwan arms sales. He also said, “We 
unification” with Taiwan, but states that in the case of 
oppose all unilateral efforts to alter the status quo, and will 
Taiwan’s “secession” from China, or in a situation in which 
continue to insist any resolution of differences accord with 
the PRC concludes that possibilities for peaceful unification 
the will of the people on both sides of the Taiwan Strait.”  
have been exhausted, “the state shall employ non-peaceful 
means and other necessary measures to protect China’s 
Select Legislation in the 115th Congress 
sovereignty and territorial integrity.” 
The John S. McCain National Defense Authorization Act 
President Tsai’s predecessor, Ma Ying
(NDAA) for FY2019 (P.L. 115-232 ) requires the Secretary 
-jeou of the KMT, 
of Defense to assess Taiwan’s military forces and report to 
pledged support for a political formula known as “the 1992 
Congress with a plan to facilitate related recommendations, 
consensus,” under which both sides of the Taiwan Strait 
acknowledged “one China,” but retained their own 
expand U.S.-Taiwan senior military-to-military engagement 
and joint training, and support U.S. arms sales to Taiwan. 
interpretations of what it meant. Under that formula, Taipei 
The NDAA for FY2018 (P.L. 115-91) requires reports and 
and Beijing held 11 rounds of quasi-official talks and 
briefings for Congress on the status of Taiwan’s arms sales 
signed 23 economic and functional agreements. The PRC 
requests. The Taiwan Travel Act (P.L. 115-135) states that 
has called on President Tsai to affirm “the 1992 consensus,” 
it should be U.S. policy to allow U.S. officials at all levels 
or use her own words to affirm that, “both the Mainland and 
to visit Taiwan and to allow high-level Taiwan officials to 
Taiwan belong to one and the same China and that cross-
visit the United States and meet with U.S. officials. 
Strait relations are not state-to-state relations.” Tsai has 
neither refuted nor endorsed the notion.  
Susan V. Lawrence, Specialist in Asian Affairs   
In June 2016, the PRC announced that it had suspended 
“communication mechanisms” with Tai
IF10275
wan because of 
President Tsai’s unwillingness to endorse “the 1992 
consensus.” Since President Tsai’s January 2016 election, 
Beijing has stepped up pressure on Taiwan in many areas: 
https://crsreports.congress.gov 
Taiwan: Select Political and Security Issues 
 
 
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https://crsreports.congress.gov | IF10275 · VERSION 32 · UPDATED