Since the Cold War, the US has repeatedly offered military support to Taiwan during crises in the Taiwan Strait, such as during the outbreak of the Korean War in 1950, the First, Second, and Third Taiwan Strait Crises (1954–55, 1958, and 1995–96), and China’s military exercises around Taiwan in 2022. Regardless of whether it was before or after the severance of US–Taiwan diplomatic ties in 1979, the US has provided Taiwan with considerable support not only in military security but also in the economic, political, and diplomatic domains. What motivates the US to offer such defence and support to Taiwan?
Existing research highlights the influence of various national interests – defence, economic, and ideological – on US policy towards Taiwan (Fong 2026a). Studies have highlighted US security interests in Taiwan, including securing a geopolitical chokepoint (Erickson and Wuthnow 2016; Beckley and Brands 2023), ensuring freedom of navigation in the Taiwan Strait (You and Hao 2018; Xin an...



