Imperial Colors Incident

The October incident (十月事件, Jūgatsu Jiken^?), also known as the Imperial Colors incident (錦旗革命事件, Kinki Kakumei Jiken^?), was an abortive coup d'état attempt in Japan on 21 October 1931, launched by the Sakurakai secret society within the Imperial Japanese Army, aided by civilian ultranationalist groups.

Having failed to replace the government with a totalitarian state socialist military dictatorship in the abortive coup d'état of the March Incident of March 1931, Lt. Col. Kingoro Hashimoto of the Sakurakai and his ultra-nationalist civilian supporters, including Shūmei Ōkawa, resolved to try again in October 1931.

Soon after the Japanese invasion of Manchuria by the Kwantung Army, without prior authorization from the Imperial Japanese Army General Staff Office and over the ongoing objections of the Japanese civilian government, Capt. Isamu Chō returned secretly to Japan (without orders) from North China to lead the plot to "prevent the government from squandering the fruits of our victory in Manchuria". He was able to recruit the support of 120 members of the Sakurakai, ten companies of troops from the Imperial Guards and ten bomber aircraft from the Imperial Japanese Navy.

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