Anti-Japanese War: Katyusha Starts the Game and Blows up the Little Devils

This is a military historical novel set on the battlefield behind enemy lines during the Anti-Japanese War. It tells the story of the protagonist Li Zhen (who in his soul is Zhang Cheng, the commander of the National Army Training Corps) starting from the collapse of the Nanjing Defense War in 1937, leading the remaining troops to fight bloody battles behind enemy lines, growing step by step, and eventually becoming the North China Field Corps, the powerful anti-Japanese army in central and northern China.