On the evening of September 18, 1931, the invading Japanese army stationed in China, the Kwantung Army, blew up a section of the South Manchuria Railway near Liutiaohu in the northern suburbs of Shenyang, falsely accusing the Chinese army of damaging the railway, and launched a surprise attack on the Northeast Army’s base in Beidaying and Shenyang city. Subsequently, within a few days, more than 20 cities and their surrounding areas were occupied. This was the shocking “September 18th Incident” that shocked both China and foreign countries at that time.
On the night of September 18, 1931, the Japanese army launched a large-scale attack on Shenyang under the pretext of the “Liutiaohu Incident” they had created. At that time, the Nationalist government was concentrating its efforts on a civil war against communism and the people, adopting a policy of selling out the country to the Japanese aggressors, and ordering the Northeast Army to “absolutely not resist” and withdraw to Shanhaiguan. The Japanese invading army took advantage of the situation and occupied Shenyang on September 19th, then divided its forces to invade Jilin and Heilongjiang. By January 1932, all three provinces in Northeast China had fallen. In March 1932, with the support of Japanese imperialism, the puppet regime – the puppet state of Manchukuo – was established in Changchun. From then on, Japanese imperialism turned Northeast China into its exclusive colony, comprehensively strengthening political oppression, economic plunder, and cultural enslavement, causing more than 30 million compatriots in Northeast China to suffer and fall into dire straits.
The September 18th Incident aroused the anti Japanese anger of the whole nation. People from all over the country are demanding resistance against Japan and opposing the Nationalist government’s policy of non resistance. Under the leadership and influence of the CPC. The people of Northeast China rose up to resist and launched guerrilla warfare against Japan, giving rise to various anti Japanese armed forces such as the Northeast Volunteer Army. In February 1936, various anti Japanese forces in Northeast China were unified and reorganized into the Northeast Anti Japanese United Army. After the July 7 Incident in 1937, the Anti Japanese Allied Forces united the masses, further carried out extensive and lasting anti Japanese armed struggle, and effectively cooperated with the national anti Japanese war led by the CPC, finally ushered in the victory of the anti Japanese war.