In the early 1930s, the world economic crisis broke out, and Japan's economy suffered heavy losses and fell into extreme difficulties, which led to a political crisis. In the case of domestic troubles and foreign invasion, the Japanese fascist forces decided to break through the shackles of the Washington system on Japan, and while Britain and the United States were busy coping with the crisis and Chiang Kai-shek's large-scale "suppression", they seized the Northeast to get rid of the predicament and attempted to compete for the world.
Direct cause: On the evening of September 193 10, Company 3, Battalion 2 of the Japanese Kwantung Army Hushitai Independent Garrison left Hushitai Military Camp and headed south along the Nanman Railway. At about 22: 20 p.m., a detachment headed by Captain Kawamoto of the Liutiaohu detachment of the Japanese Kwantung Army Railway Guard, in the name of inspecting the railway, was located about 7.5 kilometers north of Fengtian (now Shenyang).
Small explosives were detonated in the Nanman railway section of Liutiao Lake, 800 meters away from Beidaying, where the Northeast Army was stationed, and a short section of the railway was blown up. Three bodies of China people dressed as soldiers of the Northeast Army were placed at the scene as evidence that the Northeast Army destroyed the railway, falsely claiming that the China army destroyed the railway and attacked the Japanese defense team. This incident is called "September 18th Incident".
Extended data:
The September 18th Incident was an important historical event that occurred in the northeast of China in the early 1930s 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 beginning of the Second World War. At the same time, it broke the relatively stable world pattern formed after World War I.
* * * The two parties were the two major political parties in China at that time. After the September 18th Incident, with the unprecedented awakening of the Chinese nation, national unity has been increasingly strengthened, and the sense of national mission of the two parties has been rapidly enhanced, which has effectively promoted the re-cooperation between the two parties.
From the northeast to the northwest, and finally to the whole of China, it finally created a new situation of unity against aggression and resistance to Japanese imperialist aggression, and achieved great national unity.
Baidu Encyclopedia-September 18th Incident