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
Green Island, Taiwan Green Island, Taiwan Green Island (Mandarin Pīnyīn: "Lǜ Dǎo"; Hokkien POJ: "Le̍k-tó") is a small volcanic island in the Pacific Ocean about off the eastern coast of Taiwan. It is at high tide and at low tide, making it the Republic of China's seventh-largest island. The island is administered as , a rural township of Taitung County and one of the county's two offshore areas (the other being Orchid Island). The island once served as a penal colony for political prisoners during Taiwan's period of martial law, although today it is primarily known as a tourist hotspot. The name "Green