1. In the early 20th century, China was fragmented under various warlords after the fall of the Qing dynasty.
2. The Guomindang, led by Chiang Kai-shek, allied with the Communist Party to defeat the warlords during the Northern Expedition from 1926-1927.
3. However, Chiang turned on the communists, massacring them in Shanghai and Guangzhou. From 1928-1937, Chiang ruled China as dictator and focused on modernizing but faced growing communist and Japanese insurgencies.