History of the Republic of China its remaining islands in Fujian as vital for any future campaign to defeat the PRC and retake mainland China. On 3 September 1954, the First Taiwan Strait Crisis began when the PLA started shelling Quemoy and threatened to take the Dachen Islands. On 20 January 1955, the PLA took nearby Yijiangshan Island, with the entire ROC garrison of 720 troops killed or wounded defending the island. On January 24 of the same year, the United States Congress passed the Formosa Resolution authorizing the President to defend the ROC's offshore islands. The First Taiwan Straits crisis ended in March 1955 when
Mainland China War on the mainland. This forced the Kuomintang to relocate the Government and institutions of the Republic of China to the relative safety of Taiwan, an island which was placed under the control of the Republic of China after the surrender of Japan at the end of World War II in 1945. With the establishment of the People's Republic of China on October 1, 1949, the CPC-controlled government saw itself as the sole legitimate government of China, competing with the claims of the Republic of China, whose authority is now limited to Taiwan and other islands. This has resulted in