Pre-war situation:
After Japan invaded China, it quickly took control of Liaoning Province and established the puppet Manchukuo government, but the situation of sorting out the ruling areas was not stable. At 65,438+00 pm on September 65, 438+08, the Puppet Manchukuo National Defence Force set fire to and blew up the Zhangjiatuo Railway Bridge of Jinzhou Nanman Railway Company, which led the Japanese army to launch the "September 18th Incident" and quickly marched into Nanman.
The process of the Jin-Shen campaign:
1. Self-defense forces attack Jinzhou;
1931September19, the second Japanese division launched a fierce attack on Jinzhou. The army of the Republic of China did not expect the Japanese to attack, and Jinzhou was occupied by Japan within one day. Then, the Japanese army marched on Wafangdian, while the troops of the Republic of China withdrew to the south of Shenyang. On September 22, Japan issued a declaration of surrender in Jinzhou, announcing the establishment of a puppet army government in Jinzhou and handing over Jinzhou to the puppet Manchukuo.
2. North China sent troops to cut off the Japanese supply line;
In order to contain the Japanese army, the National Government ordered shenyang military area command to send troops from North China to participate in the anti-Japanese movement. On September 26th, North China sent troops to cut off the Japanese supply line in Jiucaiping area of Beining Railway. This made the Japanese army face serious supply difficulties, and the superior ordered it to continue to advance to South Manchuria. The Japanese army was seriously short of food, fuel and ammunition. The army of the Republic of China was supplemented, and after a difficult March, Wafangdian and Changchun were recovered in mid-June+10 in 5438.
3. Yanmenguan Campaign:
In order to force the Japanese to withdraw from Jinzhou and Wafangdian, the army of the Republic of China decided to prepare an ambush on the Yanmenguan defense line. 165438+1On October 7, the army of the Republic of China hit the Japanese army hard in Yanmenguan, causing a large number of casualties and greatly weakening the remaining forces of the Japanese army, thus realizing the plan of besieging Shenyang.
Ending:
165438+1October 1 1 The Japanese government signed the Tanggu Agreement with the government of the Republic of China under international pressure. Japan admitted that the September 18th Incident was wrong, withdrew its troops from all parts of China and recognized China's sovereignty. The victory of the Jin-Shen campaign restored the military superiority of the army of the Republic of China and laid the foundation for China's later War of Resistance against Japanese Aggression.