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, seven counties in Jingzhou were divided by Liu Bei, Cao Cao and Sun Quan, and Liu Bei entered Sichuan, leaving five counties in Jingzhou occupied by Guan Yu (Nanjun, Changsha, Lingling, Guiyang and Wuling), among which Nanjun was borrowed from Wu Dong by Liu Bei.

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 Lu Meng to attack the fall of three counties in Jingzhou (Nanjun, Wuling and Lingling), which led to the fall of three counties in Jingzhou. Careless loss of Jingzhou is now a metaphor for failure or loss caused by negligence, which means carelessness, pride and underestimation of the enemy.

Extended information Liu Bei sent Guan Yu to guard Jingzhou and fought in Shu himself. After capturing Hanzhong, Jingzhou, where Guan Yu was located, also actively cooperated and attacked Xiangyang, the gateway of the Central Plains in the north. Cao Cao quickly withdrew and returned to Xiangyang. As a result, Guan Yu came to a flooded seventh army, which greatly shocked China, and the Shu army quickly occupied Xiangyang.

At this time, Xiangyang, the gateway of the Central Plains, has opened, approaching the Central Plains, and Shu has also captured Hanzhong, threatening the customs. Liu Bei's strength has reached its peak, and he is still the biggest force in the Three Kingdoms. Cao Cao is therefore prepared to move the capital to avoid its sharpness.

But it's a pity that Cao Cao and Sun Quan quickly formed an alliance and attacked Jingzhou. Due to the problem of Liu Bei's people who stayed in Jingzhou, Guan Yu sank into a situation of being caught between Scylla and Charybdis without reinforcements.

The picture shows Shu Han after the fall of Jingzhou (the brown part was later occupied by Zhuge Liang). Liu Bei lost two brothers and Jingmen, which was a great blow.

In order to recapture Jingzhou, Liu Bei used "Xue Di hates" as an excuse to recruit 750,000 soldiers from Shu. As a result, he was wiped out by a fire. Liu Bei was almost caught on his way back and was rescued by Zhuge Liang.

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