Mainstay · Introduction to the Anti-Japanese War: On July 7, 1937, Japanese imperialism launched the Marco Polo Bridge Incident in an attempt to annex China by force. The Japanese invaders launched an attack on Wanping County, and the Chinese defenders rose up to resist. The Chinese People's War of Resistance Against Japanese Aggression broke out in an all-round way. Anping, a small inland county with a population of only 170,000 at the time, became the birthplace of the Jizhong Anti-Japanese Base Area.