original name Chiang Chung-cheng, 1887–1975, Chinese general: president of China (1928–31; 1943–49) and of the Republic of China (Taiwan) (1950–75). As chairman of the Kuomintang, he allied with the Communists against the Japanese (1937–45), but in the Civil War that followed was forced to withdraw to Taiwan after his defeat by the Communists (1949)