Guan Yu didn't do a good job in diplomacy, and finally hung up and lost Jingzhou. In order to avenge Guan Yu and Zhang Fei, Liu Bei sent troops to Wu Dong, defeated by Lu Xun, and fled back to Baidicheng. Finally, he left Zhuge Liang alone. Because of Guan Yu's death, Jingzhou fell, so Zhuge Liang's Northern Expedition could not be divided into three parts, and he could only attack from the north. Because of the dangerous terrain there, it is difficult to keep up with the supply.

Therefore, Zhuge Liang retired after playing a few tricks, and the long-term Northern Expedition left domestic resources empty. Is there any successor training, so that there will be no Liao Hua, the pioneer in Shu, and it will be unbearable. The failure of the Northern Expedition led to Liu Bei's desire to return to the Han Dynasty. Later, Zhuge Liang died and Shu declined.