There are no eternal friends or enemies between countries, only eternal interests. Jingzhou is a piece of fat meat for any party, and no one wants to give up such an important military strategic base. In troubled times, whoever has the ability to seize the initiative can occupy Jingzhou, and there is no real agreement. Sun Quan and Liu Bei joined forces to resist Cao Cao's attack, and they formed an alliance. Although Liu Bei promised to give Sun Quan Jingzhou after defeating Cao Cao, he didn't think so in his heart. If we lose Jingzhou, we will lose our base and face the fate of fleeing.

Zhuge Liang formulated the strategy of Longzhong confrontation in Nanyang. Liu Bei's first base area should be Jingzhou and his second base area should be Xichuan. Only by seizing these two places can Liu Canbei realize his desire to unify the world. The relationship between Sun Quan and Liu Bei is very delicate. They are * * * allies against Cao Cao, and they are also competitors. To grasp this delicate relationship, we need a strong political mind. Sun Quan and Liu Bei are both outstanding politicians.

Both Liu Bei and Zhuge Liang know that at this moment, Sun Quan will never turn against Liu Bei because he lost his son in Jingzhou. Because they have a * * relationship with Cao Cao, a powerful enemy, the disappearance of Liu Bei and Sun Quan, the final beneficiary is Cao Cao, and neither side can survive independently. So Zhuge Liang sent Guan Yu to guard Huarong Road. Zhuge Liang had assumed that Guan Yu would let Cao Cao go. He could not have killed Cao Cao here in do or die. If Cao Cao died in Battle of Red Cliffs, Sun Quan's greatest enemy was Liu Bei, and Liu Bei could not live in Jingzhou safely.

Although Jingzhou is nominally Sun Quan's territory, Liu Bei cultivated his own power here. Guan Yu has been guarding Jingzhou for many years, but Sun Quan dare not act rashly. Liu Bei has established himself here and can't leave here unconditionally.