evidence: After losing control of mainland China in 1949, the ROC retained control of Taiwan and Penghu (Taiwan, ROC), parts of Fujian (Fujian, ROC)—specifically Kinmen, Wuqiu (now part of Kinmen) and the Matsu Islands and two major islands in the South China Sea. The ROC also briefly retained control of the entirety of Hainan, parts of Zhejiang (Chekiang)—specifically the Dachen Islands and Yijiangshan Islands—and portions of Tibet, Qinghai, Xinjiang and Yunnan. The Communists captured Hainan in 1950, captured the Dachen Islands and Yijiangshan Islands during the First Taiwan Strait Crisis in 1955 and defeated the ROC revolts in Northwest China in 1958. ROC forces entered Burma and Thailand in the 1950s and were defeated by Communists in 1961. Since losing control of mainland China, the Kuomintang continued to claim sovereignty over 'all of China', which it defined to include mainland China (including Tibet), Taiwan (including Penghu), Outer Mongolia, and other minor territories. [...] - Matsu Islands (36)[35][36] [...] 馬祖列島所涵括的36座島嶼分屬四鄉，各鄉除了包括有聚落發展的較大島嶼外，還轄有數座無人島礁。 [Matsu islands encompass 36 Islands which are divided into four townships. In addition to the larger islands with inhabitants, each township also has numerous uninhabited islands and reefs] - ^ Lung Tsun-Ni (龍村倪) (1998). 東沙群島-東沙島紀事集錦 (in Chinese (Taiwan)). 臺灣綜合研究院. p. 13. ISBN 957-98189-0-8. Archived from the original on 30 January 2009.