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 people often call the area of non-coastal provinces in of Mainland China as "Inland" (). In Taiwan, certain people, the Kuomintang (KMT, "Chinese Nationalist Party") and its supporters use the term "mainland" is to refer to the territory of the PRC (Hong Kong and Macau excluded). This accords with the KMT position that "China" encompasses both sides of the Taiwan Strait. Since the KMT was the ruling party in Taiwan until 2000 and the only party allowed until the late 1980s, and had set up the educational system and taught children the term since its takeover in 1945, the term