After all, Western Shu and Eastern Wu were also two great powers, and the relationship between countries was usually linked by interests. Even if Eastern Wu and Western Shu cooperated, the two countries were each pregnant with a ghost fetus. Liu Bei can be said to be the ultimate winner of the Battle of Chibi, and he took away most of Sun Quan's interests. However, due to the contractual relationship, Sun Quan did not make a sound.
Later, Liu Bei sent Guan Yu to guard Jingzhou for a more distant goal. Sun Quan admired Guan Yu's talent and wanted his son to marry Guan Yu's daughter, Guan Yu was blindly arrogant and rejected Sun Quan with "tiger girl An can marry a dog", which also annoyed Sun Quan, which also meant that Western Shu completely tore his face with Eastern Wu. Later, Guan Yu was also blindly arrogant at this time, and was eventually captured by Sun Quan and eventually died in Eastern Wu.
When Liu Bei heard the news of Guan Yu's death, he was naturally furious, and with Zhang Fei's encouragement, he ignored the dissuasion of the ministers and Zhuge Liang and led a large number of Shu troops to avenge Sun Quan. However, because Liu Bei had lost his mind at this time, there was no tactic at all, even if he led a large number of troops, he was eventually crushed by Eastern Wu, and this battle also hurt the vitality of Shu Han, and the Shu state went downhill from then on.
But this battle did not take Zhuge Liang, if Zhuge Liang was brought, would the situation be different? The answer is no. Sun Quan's strategist was Lu Xun, and when it came to military strategy, he was absolutely inferior to Zhuge Liang, but he knew that Zhuge Liang could not go on a campaign for the following reasons. First of all, Zhuge Liang had a long-term vision than Liu Bei, and he knew that this was not the time to be angry, so he painstakingly advised Liu Bei, but where Liu Bei would listen, he directly arranged him to sit in a place, so that he could not show his ability.
Secondly, Zhuge Liang considered the overall situation, the common enemy of these two countries at present is Cao Wei, if you fight in the nest, it will only make Cao Wei yu Weng profitable, so Zhuge Liang will not completely plan. The third reason is that Zhuge Liang will not go, because if he leaves, at this time, Cao Cao will most likely attack Shuzhong, and when the two sides are on fire, it will be even more difficult to deal with. Therefore, even if Zhuge Liang went with Liu Bei to attack Eastern Wu, the war would still be lost.