In the first ten years, that is, in 249 AD, Sima Yi launched a coup d'état at Gaopingling, capturing Cao Shuang, who was then the minister of Gu Ming, and then beheading him in the back row, and reprimanding his three tribes, so that many of Cao Wei's ministers were sweaty and did not dare to oppose Sima Yi again.
Sima Yi thus overthrew The Emperor of Cao Wei and became the true ruler of Cao Wei. However, at that time, the Xiahou family, which was an alliance of Cao Wei, had heavy troops in hand, so why not send troops to stop Sima Yi and let him take over Cao Wei's power, so that the Xiahou family itself would be excluded?
In fact, the Xiahou family also wanted to send troops to the rescue, but only one of the clan descendants of the "Zhu Cao Zhuxia" was in charge of 100,000 soldiers and horses, that is, Xiahou Xuan, who was then the general of Zhengxi and the military governor of Yongliang Prefecture, and was the highest military commander in the northwest region.
Let's first talk about what kind of situation Xiahou Xuan was in at that time. In 239 AD, Xiahou Xuan became the main general and carried out a campaign against the Shu state, but due to the limitation of military ability and the vigorous resistance of the soldiers and civilians of the Shu state, he returned without success, greatly disappointed, and the prestige of the army plummeted.
When Sima Yi launched the Gaopingling coup, Xiahou Xuan was only the nominal highest official in the northwest region, the Yongliang Prefecture was the base area that Sima Yi had been running for many years, and the backbone of the army was also Sima Yi's cronies, out of political exchange, Sima Yi had to hand over the military power of the Yongliang Prefectures, but the army still obeyed Sima Yi's orders.
Moreover, Xiahou Xuan and Sima Yi were still relatives, sima Yi's son Sima Shi, married to a wife of Xiahou Xuan's sister Xiahou Wei, and Sima Shi's relationship with Xiahou Xuan was extremely good, Sima Yi launched a coup d'état, and Xiahou Xuan was not good enough to destroy this layer of relations.
There was also the fact that he knew that his ability was insufficient sima yi, and at that time Sima Yi could be said to be a figure in charge of everything in Cao Wei, and his henchmen and protégés were all over the government and the opposition, and the army. What if Xiahou Xuan had an army of 100,000? If he failed again this time, he would have no place to die, and even his own Xiahou family would be eradicated by Sima Yi, which was too risky.
It can be said that at that time, the Xiahou family did not send troops to rescue them, and they can also be regarded as a practitioner!