In the sixteenth year of Yanxi (253), Fei Yi was assassinated, and there was no one in Shu Han to restrain Jiang Wei, after which the scale of Shu Han's Northern Expedition was greatly expanded, and finally Shu Han's national strength was seriously consumed.

After Jiang Wei obtained enough troops, he began to achieve a lot of results, first killing the Wei general Xu Zhen, and then defeating Wang Jing. Therefore, in the nineteenth year of Yanxi (256), he was promoted to the rank of general. However, it quickly went from prosperity to decline, and Jiang Wei fought one after another and lost to Deng Ai.

【Kill Xu Zhi】

In the sixteenth year of Yanxi (253), Fei Yi was assassinated and died, and it happened that Zhuge Ke of Sun Wu was also preparing to send troops to attack Wei, and contacted Jiang Wei to send troops at the same time, so Jiang Wei led tens of thousands of people out of the stone camp to besiege Nan'an, Wei State Yongzhou Assassin Shi Chen Tai led the army to come to the rescue, Chen Tai marched to Luomen, but Jiang Wei was forced to retreat because of the long-term attack on Nan'an Buke, the military food was exhausted.

According to the record of "Han Jin Spring and Autumn Period": Ke made Sima Li Heng go to Shu to say Jiang Wei, and ordered Tongju, saying: "The ancients said that the sage cannot be timely, and the time must not be lost." Today, the enemy government is in the private door, the outside and the inside are separated, the soldiers are frustrated outside, and the people are resentful inside. If it is cut down on a large scale, so that Wu attacks its east, and Han enters its west, he saves the west and the east is empty, and the east is light, and the army is trained to take advantage of the enemy who is weak and light, and it must be broken. "Wei followed.

In the seventeenth year of Yanxi (254), the Shu Han court added Jiang Wei to supervise the internal and external military. At that time, Wei Didao chief Li Jian asked for surrender, and the Wei general Jiang Wei got a lot of military supplies from Li Jian, so Jiang Wei led Zhang Wei and others to the Northern Expedition.

At this time, Zhang Wei, who was suffering from rheumatism, was so serious that he could not move around and had to rely on crutches to stand, so it was proposed that Zhang Wei be left behind, but Zhang Wei insisted on following the army on the Northern Expedition. Before leaving, Zhang Wei wrote to the Lord: "The minister is valued by the Lord, has been favored many times, and is sick, so he is often worried about his sudden death and cannot repay the Lord. Now he can finally go out with the army and serve the country. If Liangzhou is obtained, the minister is willing to serve as the guard of the feudal town; If you can't repay the victory, you have to sacrifice yourself to repay it. When the queen saw it, he was moved and couldn't help but shed tears. After fighting with the Wei general Xu Qian, Zhang Wei fought in person, but because he was outnumbered, he died in battle, and he begged for benevolence.

Later, Jiang Wei entered the siege of Xiangwu and avenged Zhang Wei, he defeated the Wei general Xu Zhen and beheaded him, and the Wei army was defeated and retreated. Jiang Wei took advantage of the victory to pursue, and successively broke through Hejian, Heguan, Lintao and other places, and pulled out the people of his county to return to Shu.

【The Great Defeat of the King Sutra】

In the spring of the eighteenth year of Yanxi (255), Zhang Yi, the general of the expedition to the west, returned to Chengdu (cheng) with Jiang Wei, the general of Wei, Jiang Wei proposed in the court to send troops to attack Wei again, only Zhang Yi argued in court, thinking that the country was weak and the people were tired and should not abuse force, but Jiang Wei did not listen to Zhang Yi's opinion.

In the same year, the Wei general Sima Shi died and his younger brother Sima Zhao had just taken control of the Wei dynasty, so Jiang Wei was ready to take advantage of the situation, he led Zhang Yi, Xiahou Ba and others to Caohan, marched to Di Dao, and promoted Zhang Yi to the general of Zhennan.

After Jiang Wei attacked, the opponent he faced was Yongzhou Assassin Wang Jing. Historically, Wang Jing was a civilian official, so he didn't have much military experience.

After learning of Jiang Wei's attack, Wang Jing immediately informed Chen Tai that the Shu army launched an attack from Qishan, Shiying, and Jincheng at the same time, and suggested that the enemy be met from these places. Wang Jing asked Ying to lead the army to meet the enemy in Shiying, and suggested that the troops should be divided to defend Qishan, and at the same time the Wei army of Liangzhou should be deployed to go to Caohan to reconnoiter the enemy army marching into Jincheng. Chen Tai believed that the intelligence was unreliable, and it was unlikely that the Shu army would gather such a large army to deal with Wang Jing. But the size of the Shu army was indeed like this, and the Wei garrison was not enough to divide the troops. Once the Wei army in Liangzhou was transferred to fight elsewhere, the territory was unfamiliar, so it could not be used to the fullest.

Chen Tai thus replied to Wang Jing that since the enemy army should not be able to divide its forces and advance, they must further analyze Jiang Wei's movements, and the Wei army must gather troops to gain complete numerical superiority. Ordered the king to enter the Tundi Road, avoid meeting the enemy, and wait for reinforcements to arrive. Chen Tai asked Wei Ting for reinforcements, and at the same time personally led the army to Chen Cang.

However, Wang Jing did not obey Chen Tai's orders, sent troops without authorization, led the army to venture out of the upper reaches of the Tao River, the two armies clashed on the west bank of the Tao River, the Wei army suffered a heavy defeat, only when the escape drowned in the Tao River There were more than 10,000 soldiers, most of Wang Jing's army was missing, and tens of thousands of people died. Wang Jing had to lead more than 10,000 remnants to cross the Tao River and retreat to Didao on the south bank, and reorganize under the protection of the city wall.

After the big victory, Jiang Wei wanted to take advantage of the victory to march, Zhang Yi advised: "You can stop, you shouldn't continue to march, if you march, you may ruin this great achievement, just like painting a snake's feet." Jiang Wei was furious, did not listen to the advice, and surrounded Wang Jing in Didao City.

【Jiang Wei's Retirement】

After Chen Tai learned of the defeat at the front, he reported to the imperial court in the starry night, and at the same time collected the remnants of Wang Jing and prepared for the attack. Soon, the general Sima Zhao ordered Deng Ai, the captain of Changshui, to serve as the general of Anxi, and fought against the Shu army with Chen Tai, and sent the captain Sima Fu as a backup.

When Chen Tai led his army to Shangqi, reinforcements led by Deng Ai, Hu Fen, and Wang Mi also arrived. During the military consultations, Deng Ai pointed out that after Wang Jing suffered a crushing defeat that led to the annihilation of the elite in the region, the morale of the Shu army was extremely high, and the morale of his own army was low, and the reinforcements were hastily gathered after the defeat, and it was difficult to defeat the enemy army at that time. Therefore, it is wise to sacrifice some local interests to save the interests of the whole, and it is better to let Wang Jing defend himself, and wait for the Shu army to be tired and slack before launching a counterattack. Everyone else agreed with Deng Ai's suggestion, but Chen Tai was against it. Chen Tai reasoned that Jiang Wei did not have supplies due to logistical problems to deal with the long-term stalemate, and it was advantageous to solve the problem quickly. Once the Shu army ran out of food, its morale could not last. Everyone finally agreed with Chen Tai's idea.

Chen Tai then divided his troops into three routes, advanced to Longxi, bypassed Jiang Weijun, and rushed to the high mountain southeast of Didao City that night, and then lit piles of beacon fires and ordered the soldiers to sound drums and horns in unison. When the soldiers in Didao City saw that the rescue had arrived, their morale was greatly boosted.

At first, Jiang Wei thought that the officials who came to rescue their subordinates must gather all sides before they could send troops, but at this moment, he suddenly heard that the Wei army had been killed, so he thought that there had been an unexpected change or that the enemy army had premeditated, so the whole army was shocked and panicked. The Wei army marched to Longxi, along the way up the mountain road is dangerous, Chen Tai expected that the Shu army would inevitably set up an ambush on the way, so he disguised himself as a soldier from the south road, Jiang Wei really sent troops to ambush for three days, as a result, the Wei army marched secretly and finally escaped the ambush of the Shu army. Jiang Wei then led his troops around the mountain peak to chase and kill, and after a battle between the two armies, Jiang Wei retreated back to the camp in defeat.

At this time, the Wei army in Liangzhou had rushed from Jincheng Pass to Woganhan, and Chen Tai and Wang Jing secretly agreed on a date to plan to attack the passage from which Jiang Wei's soldiers and horses returned. When Jiang Wei and the others heard the news, they fled in a hurry, and the soldiers in Didao City were finally rescued. Wang Jing sighed: "The food supply is less than ten days, and the direction of the attack is not at the right time, and the whole city is almost destroyed!" On the one hand, Chen Tai comforted the soldiers, dispatched men and horses, sent people to garrison dangerous passes, and stepped up the repair of the fortress, and then returned with his own troops, still stationed in Shangqi.

After Jiang Wei broke the Wang Jing, the Wei court convened the ministers to discuss the military situation, and everyone thought that if the Wang Jing was defeated, it would be difficult for Di Daocheng to protect itself. If Jiang Wei cut off the road to Liangzhou, annexed the four counties of Longxi, Nan'an, Tianshui, and Guangwei, and occupied the dangerous places west of Guanzhong and Longxi, he would definitely be able to destroy Wang Jing's troops and capture Longyou. Therefore, it is necessary to immediately recruit soldiers and horses from all sides and gather a large army to attack. The general Sima Zhao said: "Zhuge Liang often had this ambition back then, but in the end it was not realized. This matter is very important, and it must be foresighted, which is not something that Jiang Wei's intelligence can do. And Di Dao City will not be breached by him so quickly, but there is a shortage of food in the city, and it is very urgent, so it is only the best policy to rescue as quickly as Chen Tai, the general of Zhengxi. ”

After Chen Tai repelled Jiang Wei, Sima Zhao said to Xun Yi accordingly: "Xuan Bo has always been calm and brave, resourceful and decisive, this time he shoulders the heavy responsibility of one side, rescuing the city that will be captured, and does not ask the court to increase troops, and the situation is very light in the table, it seems that there must be a way to pacify the enemy." As a general, you should be like him! ”

On the Shu Han side, Jiang Wei was also able to serve as a general because of his contribution to the Great Breaking of the King Sutra, and thus became the first person in the military to be justified, but this was also the starting point of Jiang Wei's military strategy from prosperity to decline.

ps: This is yesterday, I forgot to send it at night, sorry