Opium War Britain forces China to open five treaty ports and relinquish Hong Kong. China loses influence in Japan and Korea.
Japan colonizes Taiwan.
The Boxer Uprising Japan and several Western nations invade Northern China and occupy Beijing. Nanjing Era Guomindang retains power for a decade. Japan occupies Manchuria following the Mukden Incident. 1934-1935 GMD forces CCP from Jiangxi Soviet. Civil War ensues.