Unique among foreign wars in modern Chinese history, the Sino-Japanese War stands out not only as the longest war fought on Chinese soil, but also the longest confrontation in the run-up to it. The process dates back to at least the conclusion of the Russo-Japanese War of 1904-05, when the Japanese firmly established a foothold on the Chinese mainland in the Northeast (Manchuria). With a base on continental China, the Japanese could more easily infiltrate, penetrate, and occupy other regions of China, purposes that colonial Taiwan could not serve as well. The War and its prologue provoked at least as many forms of resistance as there were forms of Japanese aggression. If China's military resistance was less than vigorous overall, the Chinese did mobilise often scant resources to oppose or undermine Japanese aggression with sporadic success. Besides fresh perspectives on the War, these studies further provide an important background to the contest for power after the War. To the extent that we are still living with the consequences of the War, the socio-political forces that came into existence during the period of resistance continue to have relevance.