Tachen Islands (or Dàchén Qúndǎo) is a group of islands off the coast of Zhejiang, the People's Republic of China. It was controlled by the Republic of China (Taiwan) (the government of all China until 1949) until an evacuation by the American Navy in 1955. Zhejiang (Chinese: 浙江; pinyin: Zhèjiāng; Wade-Giles: Che-chiang; Postal System Pinyin: Chehkiang or Chekiang) is a eastern coastal province of the Peoples Republic of China. ... The Peoples Republic of China (PRC) comprises most of the cultural, historic, and geographic area known as China. ... The Republic of China (Traditional Chinese: 中華民國; Simplified Chinese: 中华民国; Wade-Giles: Chung-hua Min-kuo, Tongyong Pinyin: JhongHuá MínGuó, Hanyu Pinyin: Zhōnghuá Mínguó) is a multiparty democratic state that is de facto composed of the island groups of Taiwan, the Pescadores, Quemoy, and the Matsu. ... 1949 is a common year starting on Saturday. ... The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... 1955 is a common year starting on Saturday. ...
Quemoy, Kinmen, or Chinmen (金門, pinyin: Jīnmén, POJ: Kim-mn̂g) (pop. ... The Matsu Islands (馬祖列島 or less frequently, 馬祖群島 Pinyin: Mǎzǔ) are a minor archipelago of 19 islands and islets in the Taiwan Strait administered as Lienchiang County (連江 Pinyin: Liánjiāng), Fujian Province of the Republic of China (ROC, based on Taiwan). ...
It began with the takeover of the KMT by the right-wing General Chiang Kai-shek and purges of leftist and Communist members in 1926 and ended in 1949 with an unofficial cessation of major hostilities, with the Communists controlling mainland China and the Nationalists controlling Taiwan, Penghu, and several outlying Fujian ese islands.
In December 1949 Chiang proclaimed Taipei, Taiwan, the temporary capital of the Republic of China and continued to assert his government as the sole legitimate authority in China.
On January 20, 1955, the PLA took nearby Yi Kiang Shan, with the entire ROC garrison of 720 troops killed defending the island.