The September 18th Incident, also known as Shenyang Incident, Manchuria Incident, Liutiaohu Incident, etc. , refers to a military conflict and political event that broke out in northeast China on September 193 18. The two sides of the conflict are the Northeast Army of China and the Japanese Kwantung Army. The Japanese army occupied Shenyang on the pretext that China troops bombed the South Manchuria Railway built by Japan.

1931September 18, the Japanese kwantung army stationed in the northeast of China was bombed by the railway "defenders" on the Nanman railway track near Shenyang Liutiao Lake according to a carefully planned plot, and it was blamed on the China army. This is the so-called "Wicker Lake Incident".

Using this as an excuse, the Japanese army suddenly launched an attack on the China army stationed in Shenyang Beidaying. Based on Chiang Kai-shek's negative attitude towards Japan, the local authorities in Northeast China and the National Government mistakenly adopted a policy of non-resistance. That night, the Japanese army captured Peking University Camp and occupied the whole Shenyang City the next day. The Japanese army continued to attack the vast areas of Liaoning, Jilin and Heilongjiang. In just over four months, 6.5438+0.28 million square kilometers northeast of China, which is 3.5 times of Japanese territory, all fell, and more than 30 million elders became conquered people. This is the "September 18th Incident" that shocked China and foreign countries.

The September 18th Incident was a major historical event that took place in the northeast of China and shocked China and foreign countries. It was not only the beginning of Japanese imperialist conquest of China by force, but also the first war of aggression ignited by fascist countries in the world. Its outbreak marked the formation of the origin of the Asian War and the prologue of the Second World War, breaking the relatively stable world pattern formed after the First World War.