The battle of Songhu began in August 1937 13. After the Lugouqiao Incident, Chiang Kai-shek took the initiative to fight back in Shanghai in order to change the direction of Japanese invasion from north to south to east and west for a long time. About 654.38+0000 troops from China and Japan went into battle, and the battle itself lasted for three months. The Japanese army invested more than 200,000 people in 8 divisions and 2 brigades, and announced more than 40,000 casualties. China's army invested more than 800,000 people in the most elite Central Teaching Corps, 87th Division, 88th Division,148th Division and 62nd Brigade, and counted 300,000 casualties by itself.

On August 4th, 1937, under the command of Commander-in-Chief Zhang Zhizhong, the Ninth Army of the local Kuomintang garrison commanded the 87th and 88th Divisions to start a general assault, and the China Air Force also went to Shanghai to cooperate. 19 On August 3rd, he was ordered to launch a siege on the Hongkou base of the Japanese Marine Corps in Shanghai in an attempt to drive the enemy into the sea. On August 13th, the Anti-Japanese War between Shanghai and Songsong began. 10 year 10 October 20th, the Japanese army secretly formed 10 army to surround the China army, 10 October 5th, 1 10, and 80,000 Japanese troops landed in jinshanwei. Chiang Kai-shek delayed his retreat because he fantasized about the interference of the signatories to the Nine-Nation Convention, but at this time, the wind of appeasement prevailed in western countries, saying that China's army took the initiative to provoke the demilitarized zone in Shanghai. 1On the evening of October 8, Chiang Kai-shek ordered a full retreat. The whole army withdrew from Shanghai to fight and retreated to the west of Nanjing, Suzhou and Jiaxing in two ways. Due to the hasty command, the command was out of control, and the retreat became a total rout. On the 9th, the Japanese army repelled the sporadic resistance of the China army and occupied Hongqiao Airport, Longhua, Fengjing and Qingpu. On June 1 1, the Japanese army advanced to Suzhou Riverside, Heather and Pudong, and my troops serving as cover missions were ordered to withdraw from their positions. On the same day, Yu Hung chun, the mayor of Shanghai, published a letter to the citizens, announcing the fall of Shanghai, the largest city in the Far East.