At the beginning of 1942, the Japanese army swept the base area in northwest Shanxi. In order to combat the arrogance of the Japanese army, Li Yunlong led an independent regiment to attack Ping'an County. Japanese troops from all walks of life came to the rescue one after another, and all the troops of our army blocked them. Li Zhenghu was instructed to lead a cavalry company to defend. Relying on the unique terrain, he fought hard with the Japanese army and made huge sacrifices to help Li Yunlong's main attacking force successfully capture the county town of Ping'an, causing heavy damage to the enemy......