Japanese invasion of Manchuria

Overview

The Empire of Japan's Kwantung Army invaded the Manchuria region of China on 18 September 1931, immediately following the Mukden incident, a false flag event staged by Japanese military personnel as a pretext to invade. At the war's end in February 1932, the Japanese established the puppet state of Manchukuo. The occupation lasted until mid-August 1945, towards the end of the Second World War, in the face of an onslaught by the Soviet Union and Mongolia during the Manchurian Strategic Offensive Operation.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Kwantung Army's invasion of Manchuria, triggered by the staged Mukden incident in September 1931, marked a decisive expansion of Japanese military power onto the Asian continent. The campaign concluded in February 1932 with Japan establishing Manchukuo, a puppet state that gave Tokyo control over a resource-rich region and a strategic staging ground for further operations into China proper. The occupation endured until mid-August 1945, when Soviet and Mongolian forces dismantled it during the Manchurian Strategic Offensive Operation. The invasion is significant as an early indicator of the Kwantung Army's willingness to act independently of civilian government and to manufacture pretexts for territorial seizure, dynamics that shaped the broader escalation toward full-scale war with China in 1937 and Japan's wider continental ambitions throughout the Second Sino-Japanese War.

Forces & casualties

Commanders (9)