Dai's property

When Cao Cao died, the situation of Cao Wei was as follows: Xia Houdun and Cao Hong were the central army, Coss was the southern army, Cao Xiu was the joint army, Xiahou Mao and Cao Zhen, the sons of Xia Houdun, were in the west, and Chu Xu was the imperial guard. These are loyal relatives and fellow villagers of the Cao family, and they are almost invulnerable militarily.

Zhuge Liang's constant northern expedition led to an unprecedented increase in Sima Yi's resume.

War cannot be divorced from politics. During Zhuge's Northern Expedition, Shu Han missed the best opportunity to make a comeback, which was a life-and-death struggle. Specifically, it can be seen from four aspects: the source of soldiers, generals, economy and internal unity. At this time, Cao Wei was thriving and very popular.

Prestige and meritorious military service did not bring enough capital for Sima Yi's rebellion, because of Cao Shuang's chaotic government and a series of operational problems, and those who stood on Sima Yi's side just wanted Cao Shuang to step down, that's all. Sima Yi is betting that Cao Shuang is a son-in-law, as long as he is glorious.

Cao Shuang surrendered directly, and it was too late to invade him everywhere. Cao Shuang's series of actions prompted Sima Yi to even help Sima Yi to take the upper position, instead of relying on the military. This is an accident, a political gamble, and has little to do with Zhuge Liang's Northern Expedition. Cao Cao died young, Cao Shuang dominated the state affairs, and the chaotic government was unpopular. Sima Yi won a gambling game at a disadvantage, that's all.

Sima Yi-xi played an important role in repelling Zhuge's martial arts, but it was far from decisive. What's more, even without Sima Jia, Cao Wei would not be stable, and clan politics would inevitably lead to the intensification of power struggle. As soon as Shu was destroyed, Zhong Hui rebelled. There were eight kings' rebellion in the Western Jin Dynasty, and Wang Dun and Huan Wen in the Eastern Jin Dynasty.

Although Sima Yi did play the role of a fireman for a long time during Pi, Rui and Fang periods. At that time, almost no one in the imperial clan could fight, and the generals with other surnames also kept in touch with each other, so they had to rely on Sima Yi, but Sima Yi never really got the military power or core power. At that time, it was just a dog of Cao Wei, and it was thrown away after being used.

It was not until the change of Gao Pingling that Sima Jia really entered the core of power. Zhuge Liang is better than Sima, but Wei Guoqiang is in Shu, and whoever changes Shu will lose in the end. Fa Zheng, although Pang Tong is cunning, he can't do this. Key hardware can't be done, and software is useless. Sima Yi is in no hurry. Wei has a vast territory and a large population, which can develop slowly in constant changes. Shu can't delay, and the gap will get bigger and bigger.

Sima Yi is a talented emperor, who knows people well and does his duty well. Zhong Hui, Wargo, Du Yu and yang hu were all promoted by Sima. Jiang Wei, promoted by Zhuge, was no match for the generals of Wei, and he was exhausted because he did not appoint his subordinates. This is the real and objective Zhuge, but The Romance of the Three Kingdoms has made Zhuge Aliang a myth. ?