Chiang Kai-shek

Chiang Kai-shek (1887–1975) was a military officer and politician who succeeded Sun Yat-sen as the dominant figure in the Kuomintang (KMT) after Sun's death in 1925. As commander of the National Revolutionary Army, he led the Northern Expedition (1926–1928), which nominally reunified China under a Nationalist government based in Nanjing. In 1927 he turned violently against the Chinese Communist Party (CCP) in the Shanghai Massacre, igniting a civil war that would persist, with interruptions, until 1949.

During the Second Sino-Japanese War (1937–1945), Chiang led Chinese resistance against Japan and was recognized as one of the "Big Four" Allied leaders, attending the Cairo Conference in November 1943 with Roosevelt and Churchill. The resulting Cairo Declaration stipulated that territories such as Taiwan and Manchuria be returned to the Republic of China. In 1945 the ROC became a founding member of the United Nations and a permanent member of the Security Council.

After the resumption of civil war, Chiang's forces were defeated by Mao Zedong's communists. In December 1949 he relocated the ROC government to Taipei, where he ruled as President under martial law and through the Kuomintang's one-party system. His government continued to claim sovereignty over all of China and held China's UN seat until UN General Assembly Resolution 2758 (25 October 1971) transferred recognition to the People's Republic of China.

Chiang's domestic record on Taiwan is contested: he oversaw rapid economic modernization and land reform, but also the White Terror, including the suppression following the 28 February 1947 incident. He died in office on 5 April 1975 and was succeeded politically by his son, Chiang Ching-kuo. His legacy remains central to debates over Taiwanese identity, cross-Strait relations, and the historiography of Republican China.