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
The Conflict Over the Sovereignty of the Diaoyu Islands -- between Taiwan (ROC), China (PRC), & Japan Jiajing Period of the Ming Dynasty, Japanese pirates invaded China’s southeast coast of China frequently. China was forced to implement effective jurisdiction over the Diaoyu Islands and other islands and patrolled the sea. In the 40th year of Ming Jiajing (1561), Zheng Ruozeng’s "Wanli Coastal Defense Map" included the Diaoyu Islands and eventually recognized these islands as a part of their coastal defense system. In the Qing Dynasty’s royal history inspection report of Taiwan and local compilation of the Fujian Province, they claimed Taiwan was officially ruled under the jurisdiction of the Qing Dynasty in the 22nd year of Kangxi