Sima Yi, a very clever and brave man, successfully resisted the Northern Expedition led by Zhuge Liang twice and successfully pacified Liaodong in a short time. As the most trusted minister of Wei State, he was entrusted with important tasks twice to assist the young emperor. The greatest achievement of his life is that he successfully raised the State of Wei and gave future generations the opportunity to establish the State of Jin, which belongs to his surname. Many people say that he is the one who really laughs last in the Three Kingdoms.
During the battle of Xiangfan, Guan Yu was in full swing and high spirits. At that time, Guan Yu took advantage of Cao Wei's unprepared attack and cut off the rear army. Coss, then known as the first general, almost chose to give up guarding the city and flee. Also flooded the seventh army, let Yu Jin surrender. He also bravely captured and killed Pound, which was not too harsh. Guan Yu's imposing manner frightened Cao Cao and even planned to move the city out. It was Sima Yi who dissuaded him, saying that Sun Quan and Liu Bei seemed to be close, but in fact the relationship was not good. Guan Yu is very proud now, and Sun Quan will definitely not allow this to happen. As long as we send messengers to sow discord between them, our crisis will surely be lifted. Sure enough, Guan Yu died soon after his defeat.
During Zhuge Liang's fifth Northern Expedition, Cao Wei, where Sima Yi was located, always adhered to the strategy of guarding the city. In desperation, Zhuge Liang sent troops to send her some women's clothes to humiliate him. However, who would have thought that instead of being angry, Sima Yi sent someone to inquire about Zhuge Liang's recent situation very calmly. He asked the messenger about Zhuge Liang's recent appetite. When the messenger replied that Zhuge Liang had been eating three or four liters of rice every day recently and knew that Zhuge Liang had to do everything himself recently, Sima Yi asserted that Zhuge Liang would not live long. Sure enough, Zhuge Liang died before long. After several generals left one after another and the once indestructible combination fell apart, the situation in the three countries became subtle.
As a top counselor, Sima Yi assisted Cao Wei's political career with his clever mind and decisive personality. It was because of his intelligence that he won the trust of the monarch, made suggestions and made achievements in political and military affairs, and gradually elevated Wei's imperial power, laying a good foundation for his descendants to change dynasties in the future. In a short sentence, the high-spirited General Guan Yu was killed, and it was really fierce to infer Zhuge Liang's death from a simple sentence from others.