Between August 1937 and December 1941, when the Chinese sectors of Shanghai were occupied by the Japanese, terrorist wars broke out between Nationalist secret agents and assassins of the Japanese military authorities. The most intensely disputed area was the western suburb, the Badlands, but warfare was not restricted to that zone. A spate of assassinations, bombings, and machine gun raids took place under the noses of the authorities. Thanks to the release of secret Chinese police files by the CIA, the inner workings of these terrorist groups and their links to the notorious Green Gang can now be exposed for the first time. In so doing, this book also explores the social history of Shanghai's underworld, the worsening relations between the US and Japan before World War II, and the rivalry between leaders Chiang Kai-shek and Wang Jingwei during China's War of Resistance.