Why did Zhuge Liang kill Guan Yu? Did Zhuge Liang calculate Guan Yu's death?

In 2 19, the battle of Xiangfan broke out. Guan Yu flooded the Seventh Army, which greatly shocked China. However, it eventually led to the fall of Jingzhou, which ended in Guan Yu's defeat in the central and western Jingzhou and his capture by Sun Quan. This campaign is also the second battle with Liu after Battle of Red Cliffs.

It is puzzling that the battle of Xiangfan lasted for half a year. From the beginning, envoys from Wu and Wei came and went. Later, Cao Cao sent troops from Yu Jin, Pound and Huang Xu to reinforce Fancheng. Shu Han did not take any countermeasures for such a large-scale military operation. Finally, when Guan Yu defeated Maicheng and the whole army was wiped out, the reinforcements of the Shu army came late, which aroused the suspicion of future generations.

It is pointed out that Guan Yu's capture of Xiangfan completely violates the strategic decision of "the world has changed and two ways to explore Cao Wei" put forward in Longzhong Dui. Guan Yu guarded Jingzhou, was heavily armed and arrogant. I'm afraid Liu Bei will be difficult to deal with after his death. Even if Liu Bei were alive, it would be difficult for Zhuge Liang to cross Guan Yu's barrier and gain more power. Therefore, Zhuge Liang would rather lose Jingzhou than get rid of Guan Yu by Wu people.

So why did Zhuge Liang get rid of Guan Yu?

Zhuge Liang is ambitious and ambitious. He once told his friends that he didn't care about the secretariat of history or the rank of chief executive. Before Battle of Red Cliffs, Zhuge Liang was sent to Wu Dong. Zhang Zhao, an important official, wanted to recommend him to work for Dongwu, but Zhuge Liang declined. Zhuge Liang's position and power in Shu Han gradually rose and improved. In fact, Liu Bei never confided to Zhuge Liang from the beginning. The monarch and his subjects are like fish, and they are in perfect harmony. Before and after Liu Bei proclaimed himself emperor, Guan Yu and Zhang Fei were higher than Zhuge Liang, while others, such as Zhao Yun, Pang Tong, Fa Zheng, Huang Zhong and Ma Chao, were not lower than Zhuge Liang. Later generations pointed out that Liu Bei's relationship with Guan Yu and Zhang Fei was obviously better than that of Zhuge Liang. For Zhuge Liang, who is bent on seeking one person and ten thousand people, this exclusive circle is a serious obstacle to his career.

Moreover, Guan Yu still despises the literati. After Battle of Red Cliffs, he was very jealous of Zhuge Liang. Guan Yu's arrogance has always been famous, and there are many records in history books.

The successful establishment of Battle of Red Cliffs and Zhuge Liang made Guan Yu, Zhang Fei and others dare not underestimate, but in this battle, Guan Yu let Cao go effortlessly. In this regard, Guan Yu regarded it as taboo and took it as a psychological basis, which had a destructive effect on the Sun-Liu alliance.

The battle of Xiangfan is a good opportunity for Zhuge Liang to get rid of Guan Yu. Guan Yu rashly launched the battle of Xiangfan. Such a great opportunity came, but Zhuge Liang, as a "strategist", did not remind Liu Bei of the "dangerous situation" in Jingzhou at any time, which led Liu Bei to just stand by and did not save Guan Yu, who defeated Lin Ju with one soldier. So it was not others but Zhuge Liang who really sent Guan Yu to the guillotine.