1On the night of July 7th, 937, when the Japanese army was exercising near Lugou Bridge in the southwest of Beiping, they asked to enter Wanping County for a search on the pretext that a soldier was "missing", but 29 army, the defender of China, refused. The Japanese army then shot at the defenders of China, shelling the ancient city of Wanping, and the 229 Army rose up against Japan. This is the July 7th Incident that shocked China and foreign countries, also known as the Lugouqiao Incident.

The July 7th Incident was the beginning of Japanese imperialism's full-scale war of aggression against China and the starting point of the Chinese nation's full-scale war of resistance. After the Japanese army provoked the July 7th Incident, it aroused strong repercussions throughout the country. On the second day of the July 7th Incident, the China Producer Party Central Committee electrified the whole country and proposed "to shed the last drop of blood to defend the national territory!" Loud slogans.