Zhao Kuo studied the art of war and talked about military affairs since he was a child, thinking that there is no such person in the world. Once I talked with my father Zhao She about military affairs, but Zhao She couldn't beat him, but he didn't praise him either. Zhao Kuo's mother asked Zhao She why, and Zhao She said, "War is a matter of life and death, and Zhao Kuo discussed it too hastily. If Wang Zhao doesn't let him be a general, if he must be a general, the person who failed Zhao Jun must be Zhao Kuo himself. " After replacing Lian Po, Zhao Kuo changed all the original rules and regulations and rashly appointed officers. After hearing this, Tian Lei, the general of the State of Qin, dispatched troops and pretended to retreat, cut off the route for providing foodstuff for the Zhao army, and split it in two, so the morale of the Zhao army could not be unified. Trapped for more than forty days, Zhao was very hungry. Zhao Kuo personally commanded the elite soldiers to fight, and Qin Jun hit Zhao Kuo with an arrow. Zhao Kuo's army was defeated, and hundreds of thousands of Zhao troops surrendered to Qin, who buried them all alive.