The Battle of Changping was a war between Qin Jun and Zhao in Changping (now northwest of Gaoping City, Jincheng City, Shanxi Province) from May 260 BC to June 65438+10. Qin and Zhao fought a large-scale war over joining the Party.

It took three years from the time when Qin sent troops to cede South Korea to Shangdang to the time when Qin won. However, the battle of Changping lasted only five months, and finally the Zhao army was defeated. Qin won and occupied Changping. In this battle, about 450 thousand Zhao troops were beheaded and put to death.

This battle is a strategic decisive battle between Qin and Zhao. Qin's winning streak in several wars caused heavy losses to Zhao, and the battlefield situation was extremely unfavorable to Zhao. Seeing that Zhao was determined not to fight, Qin sent spies to spread rumors of Lian Po's surrender, and threatened that Qin was not afraid of Lian Po, but of Zhao Kuo, the son of Zhao She (who had defeated Qin). According to Wang Zhao's intention, Zhao Kuo changed Lian Po's defensive deployment and pursuit mode, replaced generals and organized attacks.

Qin secretly appointed general Bai Qi as commander in chief. In view of Zhao Kuo's eagerness to win, Leitian adopted the operational policy of pretending to be defeated and retreating, luring the enemy out, and then divide and rule, cut off the route for providing foodstuff for Zhao and annihilated it, and finally won the war.