|Part of Second Sino-Japanese War|
Japanese troops entering Shenyang during the Mukden Incident.
|National Revolutionary Army, Republic of China||Imperial Japanese Army, Empire of Japan|
|Commanders and leaders|
|Flag of the Republic of China Army.svg||War flag of the Imperial Japanese Army.svg|
|160,000||30,000 – 66,000|
|Casualties and losses|
On September 18, 1931, a little amount of dynamite was blown up by a Japanese soldier near Japan's South Manchuria Railway near Mukden. Although the explosion was so weak that the rail was still usable, the Japanese army, blaming the action on the Chinese people, fully invaded Manchuria, leading to its occupation. Japan set up its puppet state of Manchukuo six months later. Soon the world knew the event, leading Japan to diplomatic isolation and its withdrawal from the League of Nations.
- The Cambridge History of Japan: The twentieth century, p. 294, Peter Duus, John Whitney Hall, Cambridge University Press: 1989 ISBN 978-0521223577
- An instinct for war: scenes from the battlefields of history, p. 315, Roger J. Spiller, ISBN 978-0674019416; Harvard University Press
- Concise dictionary of modern Japanese history, p. 120, Janet Hunter, University of California Press: 1984, ISBN 978-0520045576
- Fenby, Jonathan. Chiang Kai-shek: China's Generalissimo and the Nation He Lost. Carroll & Graf: 2003, p. 202
- Encyclopedia of war crimes and genocide, p. 128, Leslie Alan Horvitz & Christopher Catherwood, Facts on File (2011); ISBN 978-0816080830