The Chinese Civil War, occurring from 1927 to 1949, was a conflict between two major parties within China. The Kuomintang Nationalist Party, lead by Chiang Kai-shek, and the Communist Party of China, led by Mao Zedong. Interrupted briefly by World War II, this conflict occurred from an ideological split between who should rule the country. Eventually, the Communists pushed the Kuomintang farther, and farther, until the Kuomintang was forced to flee to Taiwan, where they set up the Republic of China, while in mainland China, the Communist Party set up the People’s Republic of China. To this day, the war has never officially ended, and most sides declare their governing body to be the official government of the Chinese people.