Second Sino Japanese War
The Second Sino-Japanese War refers to the war that began when Japan justified its invasion of China in 1931, with more numerous 'incidents' that grew into a full scale war
Qing Dynasty, was defeated by Japan and was forced to cede Formosa,(Japan claims the islands to have been uninhabited in 1895)
The Republic of China was founded in 1912 which overthrew the Qing Dynasty. However, central authority disintegrated and the Republic's authority succumbed to that of regional war loads
In 1915, Japan issued the Twenty-One Demands to extort further political and commercial privilege from China.
National Revolutionary Army (NRA) swept through China until it was checked in Shandong engaged in a short conflict that resulted in the Kuomintang's withdrawal from Jinan.
In the same year, Zhang Zuolin was assassinated when he became less willing to cooperate with Japan
Zhang's son declared his allegiance to the Kuomintang government under Chiang Kai-shek,which resulted in the nominal unification of China at the end of 1928.
In 1930, large-scale civil war broke out between warlords who had fought in alliance with the Kuomintang. Chinese Communists revolted against the central government following a purge of its members by the KMT in 1927.