"Blood Wo Songhu" introduction: The Battle of Songhu began on August 13, 1937. After the Marco Polo Bridge Incident, Chiang Kai-shek changed the direction of the Japanese invasion from north to south to east to west to facilitate long-term operations. , and took the initiative to counterattack in Shanghai. A total of about 800,000 troops from China and Japan were engaged in the battle. The battle itself lasted three months. The Japanese army invested 8 divisions and 2 brigades with more than 200,000 troops, and declared more than 40,000 casualties; the Chinese army invested the most elite central instructors. The Corps, the 87th Division, the 88th Division, 148 Divisions and 62 Brigades have more than 800,000 people, and their own statistics include 300,000 casualties.