When the Japanese launched the "918 Incident", they probably did not even think that they themselves would conquer the entire northeast so easily, and the smooth progress of the "918 Incident" also greatly magnified their self-confidence, so they made a bold statement: in three days to capture Shanghai, so the Songhu War of Resistance broke out.
Not all parts of China will implement a policy of non-resistance like in the northeast, and the People of China at that time knew very well that we should strike at the arrogance of the Japanese more than the victory or defeat of the war. The army stationed in Shanghai at that time was the 19th Route Army of Jiang Guangding and Cai Yankai, and later Zhang Zhizhong's 5th Army also came to reinforcements.
The Japanese launched their first attack on Shanghai, sending thousands of troops, and armored vehicles for cover, and then they were all beaten back by General Cai Yankai. After the defeat of the first offensive, the Japanese regrouped their heavy forces and increased their firepower, first bombing the positions of the 19th Route Army by aircraft, followed by ships at sea.
In order to boost the morale of the soldiers, General Cai Yankai personally came to the front line to command, and at the height of the battle, he personally took a gun to the battle, and finally he was seriously injured and still could not hold the line of fire. The Japanese, who had promised to take Shanghai in three days, did not advance half a step for a whole week, but were demoralized by General Cai Yankai and paid a painful price, and General Cai Yankai became famous in this battle.
The Japanese army still did not give up the attack on Shanghai, at that time there was a clear gap between the weapons and equipment of our side and the Japanese army, but General Cai Yankai came up with many ways to make up for the difference in weapons of our side, for example: when the Japanese army attacked Jiangwan and the temple, General Cai Yankai asked the soldiers to dig the trenches of the battle very deeply, they all stepped on the small bench when they fought, and when the enemy attacked, they retreated with a small bench, and the pursuing Japanese army did not know the depth of the trench, and it was difficult to climb out after jumping. At this time, we will launch a counter-charge.
In the end, the Songhu War of Resistance, with the efforts of General Cai Yankai and others, signed the "Songhu Armistice Agreement" on March 24, 1932, under the mediation of Britain, the United States, France and other countries. Although the Songhu War of Resistance made the Japanese army pay a certain price, but the casualties of our army were even more tragic, after all, there was a very large gap in weapons and equipment, but through the efforts of General Cai Yankai and other soldiers, we also made the Japanese realize the bloodiness of the Chinese soldiers, let them re-examine the difficulty of invading China, and postponed the all-round invasion plan for China for 5 years, and General Cai Yankai was also called a model for young marshals, if the Northeast Army at that time could have half the bloodiness of the 19th Route Army. The Northeast may not be lost.