Japanese invasion of Manchuria

Japanese invasion of Manchuria
Part of the interwar period

Japanese troops marching into Qiqihar on September 18, 1931
DateSeptember 18, 1931 – February 27, 1932
(5 months, 1 week and 2 days)
Location
Result

Japanese victory

Territorial
changes
Belligerents
 China
Commanders and leaders
Shigeru Honjō
Jirō Tamon
Hideki Tojo
Senjuro Hayashi
Puyi
Zhang Haipeng
Zhang Xueliang
Ma Zhanshan
Feng Zhanhai
Ding Chao
Strength
30,000–60,450 men 160,000 men
Casualties and losses
Western Claim : 10,000 dead from all causes Western Claim : 50,000 military and civilian dead from all causes

Chinese Claim :
Northeastern Army : 8,890 dead
Police force : 244 dead
Anti-Japanese Volunteer Armies : 6,675 dead
4,108 Chinese civilians dead
  1. 1 2 Including the Jehol Campaign in 1933
  2. 1 2 Chinese Nationalist Government's investigation of deaths in Northeast China from 18 September 1931 until 27 February 1932
Japanese invasion of Manchuria
Chinese name
Traditional Chinese九一八事變
Simplified Chinese九一八事变
Transcriptions
Alternative name
Traditional Chinese瀋陽事變
Simplified Chinese沈阳事变
Transcriptions
Japanese name
Kanji滿洲事變
Kanaまんしゅうじへん
Transcriptions
RomanizationManshū Jihen

The Empire of Japan's Kwantung Army invaded the Manchuria region of the Republic 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. With the invasion having attracted great international attention, the League of Nations produced the Lytton Commission (headed by British politician Victor Bulwer-Lytton) to evaluate the situation, with the organization delivering its findings in October 1932. Its findings and recommendations that the Japanese puppet state of Manchukuo not be recognized and the return of Manchuria to Chinese sovereignty prompted the Japanese government to withdraw from the League entirely.