The loss of Jingzhou is the story of Guan Yu, a famous soldier in the Three Kingdoms period, who lost three counties in Jingzhou (Nanjun, Wuling and Lingling). After Battle of Red Cliffs, the seven counties in Jingzhou were divided among Liu Bei, Cao Cao and Sun Quan.

After Liu Bei got Shuchuan, he returned Changsha and Guiyang counties to Sun Quan (equivalent to returning Nanjun). Later, Guan Yu sent troops to attack Cao Cao's Xiangfan area, and Sun Quan sent Monroe to attack the three counties of Jingzhou, which led to the fall of the three counties of Jingzhou.

Extended data:

Guan Yu was about 48 years old when he was in Jingzhou town, and he was 60 years old when he lost Jingzhou. "Romance" said that its hero is not less than that of the past, which is obviously an artistic exaggeration.

Even if Guan Yu became independent, he didn't choose a suitable "successor" from his subordinates. More importantly, neither Liu Bei nor Zhuge realized this problem.

No suitable officials were appointed to assist or wait for Guan Yu's replacement. On the contrary, Dongwu, Zhou Yu, Lu Su, Lu Meng and Lu Xun, who have been facing Guan Yu for a long time, have gone through several generations! Metabolism is an irresistible natural law. The imbalance of age objectively accelerated Guan Yu's tragedy. Although it's not his fault alone.