After Yang Yi's death, the Shu state really relied on Jiang Huan and Fei Yi, and a few years later, Jiang Huan went to garrison Hanzhong, and Fei Yi replaced Jiang Huan in doing shang shuling's work and handling state affairs in Chengdu. Later, Jiang Huan was not in good health, changed his offensive thinking towards Cao Wei, withdrew his army to Fu County, and Fei Yi was promoted to a general and officially made Shang Shu Ling.
Jiang Huan died in 246 AD, but in fact, since 244 AD, because his body did not allow it, he had gradually transferred all the work at hand to Fei Yi.D.
As we explained earlier when we wrote About Sima Yi, in 244 AD, the great general Cao Shuang of the State of Wei personally led troops to attack Hanzhong in order to establish his prestige. At that time, the person in charge of guarding Hanzhong was the Shu general Wang Ping, who was very calm, and strictly guarded the Xingshi area, dragging Cao Shuang's 100,000 troops with 30,000 horses.
At this time, Fei Yi in the rear was not idle at all, and he asked the Zhennan general Ma Zhong to stay in Chengdu and lead the Shu army to Hanzhong to rescue Wang Ping in the Xingshi area. Before the army set off, Guanglu Doctor Laimin came to Fei Yi's residence and asked to play a game of Go with him. The military operations of the Shu state were already very busy, there were many official documents coming and going in front, and the soldiers were also wearing armor and preparing to march, but Fei Yi's energy was very exuberant, and he did not mean to be tired at all. Lai Min was very emotional, I just tried to test you, your state is very good, you will definitely be able to defeat Cao Shuang.
Sure enough, before Fei Yi's army reached the front line, Cao Shuang was already scratching his head because of the unfavorable transportation of grain and grass materials, and after Fei Yi's army occupied favorable terrain, the Wei army was even more unable to move forward, and finally Cao Shuang had no choice but to withdraw, but Fei Yi had intercepted the Retreat of the Wei army early, and Cao Shuang suffered heavy losses in order to escape.
I don't know if this was the first time Fei Yi led his troops to fight, anyway, he fought against Cao Wei as a commander, which was considered to be a famous battle, and his men were so capable, Liu Chan was very happy, and ordered Fei Yi to be made the Marquis of Chengxiang. It was only after this that Jiang Huan formally proposed to Liu Chan that he resign from Yizhou and let Fei Yi succeed him.
In 248, Fei Yi, like his two predecessors, went to Hanzhong to garrison. Although it was also the garrison of Hanzhong, Fei Yi's strategy against Wei was indeed much different from that of the previous two. The earliest Zhuge Liang, always based in Hanzhong, took the initiative to expedition against Cao Wei several times in succession. Later, although Jiang Huan was mainly defensive in the early days, he could not see the situation clearly, and later he was fully prepared, planning to march from the waterway and attack the State of Wei to the east, but his body did not allow it, and he did not make the trip.
When we look at Fei Yi again, he doesn't seem to have much interest in attacking the State of Wei, and his garrison in Hanzhong is mainly to keep this territory and not let Hanzhong fall into the hands of the State of Wei.
For example, as early as 247 AD, Jiang Wei had already been promoted to the rank of Wei general and was ordered to deal with the affairs of the imperial court with Fei Yi, at that time, many Qianghu tribes in the northwest betrayed the State of Wei and surrendered to the State of Shu, and Jiang Wei was able to use his ability to get them all done. After these achievements, Jiang Wei had an idea, in fact, it was also a continuation of the previous Jiang Huan's grand strategy, he wanted to further win over the Qianghu people in the northwest to control the Longxi area, and finally use Longxi as another Wei initiation point outside of Hanzhong. However, every time Jiang Wei wanted to lead his troops to Longxi, he was opposed by Fei Yi, Jiang Wei led the troops outside, Fei Yi was the actual ruler of the Shu state, he often limited the number of Jiang Wei's unified troops, so that his army did not exceed 10,000 people, so that Jiang Wei just wanted to do big things again, and the number of troops under his hands was insufficient, and he could not do it.
Not only was Fei Yi like this, but at this time Liu Chan did not seem to have the ambition of the Northern Expedition against Cao Wei, as we said earlier, when Jiang Huan was in power, he heard that the Liaodong region rebelled against Cao Wei, and Liu Chan also asked Jiang Huan to go to Hanzhong to garrison the army and wait for the opportunity to attack the State of Wei, but now Liu Chan never issued such a urging to Fei Yi again, as if he also agreed with his approach. In 252 AD, Liu Chan ordered that Fei Yi, like Zhuge Liang and Jiang Huan before him, could open the palace.
A year later, in the first month of 253 AD, this was the beginning of the year, the Shu kingdom held an annual first meeting, many people came to participate in this conference, Fei Yi, as the actual ruler of the Shu state, attended the banquet, and another person also attended the banquet, his name was Guo Yi (音同休).
This Guo Huan was originally a liangzhou person, a minor official of the State of Wei, who was captured by the Shu army when Jiang Wei attacked Liangzhou, and Guo Huan was still quite aware of current affairs, surrendered to the State of Shu, and became an official of the State of Shu. At this first meeting, Fei Yi, who had just been allowed to open the house, was very happy, and his subordinates toasted him one after another, which was a cup after cup of belly, and soon there was a little more.
I don't know when, Guo Yi came to Fei Yi's side, Fei Yi didn't think much about it, thinking that this was an ordinary toasting ceremony, but it didn't come to mind, Guo Yi threw the wine glass away, and there was a small knife in his hand, he stabbed Fei Yi with one knife after another, and when the people around him reacted, Fei Yi had already collapsed in a pool of blood, and a few days later, Fei Yi died.