security, or social or economic system, of the people of Taiwan” (Taiwan Relations Act,
1979).
In addition to the TRA, the Six Assurances and diplomatic cables that were declassified
in 2020 became the cornerstone of unofficial US-Taiwan relations. However, the most
significant development in Washington–Taipei relations occurred during the first Trump
administration (Mendis and Łuszczykiewicz, 2021a, pp. 6–7), when the Taiwan Travel Act
(2018), the TAIPEI Act (2019), and the Taiwan Assurance Act (2020) were enacted into
US law (Mendis and Łuszczykiewicz, 2021).
With regard to the island-nation’s presence in IOs, the Taiwan Allies International
Protection and Enhancement Initiative (TAIPEI) Act of 2019 advocates for “Taiwan’s
membership in all international organizations in which statehood is not a requirement
and in which the United States is also a participant” as well as an “observer status in
other appropriate international organizations” (Taiwan Allies International Protection and
Enhancement Initiative (TAIPEI) Act of 2019, 2020). Similarly, the Taiwan Assurance Act
of 2020 expressed “support for Taiwan’s defense strategy of asymmetric warfare” and
encouraged Taipei to increase its defense expenditures (Taiwan Assurance Act of 2020,
in the Consolidated Appropriations Act, 2020). It also reaffirmed US support for Taiwan’s
meaningful participation in the United Nations, WHA, INTERPOL, ICAO, and other
international bodies. Finally, the law also called for Taiwan’s inclusion in the Food and
Agriculture Organization (FAO), UNESCO, and other international organizations “for
which statehood is not a requirement for membership.”
It is important to stress that all these US congressional acts may have consequences for
other countries as well, depending on the character of their relations with Taiwan. The
most explicit case is the TAIPEI Act of 2019, which provides the most unprecedented
global consequences, as it technically gives the US authorities a prerogative to either
reward or punish countries that either support or act against Taiwan. The TAIPEI Act
declares that the US government should
a) “consider, in certain cases as appropriate and in alignment with United States
interests, increasing its economic, security, and diplomatic engagement with
nations that have demonstrably strengthened, enhanced, or upgraded relations
with Taiwan”; and
b) “consider, in certain cases as appropriate, in alignment with United States foreign
policy interests and in consultation with Congress, altering its economic, security,
and diplomatic engagement with nations that take serious or significant actions to
undermine the security or prosperity of Taiwan.” (Taiwan Allies International
Protection and Enhancement Initiative (TAIPEI) Act of 2019, 2020) (italics added).
In other words, the legislation authorizes US authorities to support or “punish” other
countries by expanding or restricting diplomatic, economic, and security assistance based
on their behavior toward Taiwan. Essentially, each country’s actions may be carefully
examined as to whether its government undermines the “security or prosperity” of
Taiwan, including the support for Taiwan’s international presence. However, despite
having such a powerful legislation in hand, the question is to what extent Washington
would want to weaponize it. As of mid-2025—when this article was submitted for
publication—the future remains uncertain: with the ongoing trade war with China during