1, the biggest mistake was strategic and was caused by General Jiang Wei.

-"Biography of the Three Kingdoms and Jiang Wei" records that at the beginning, the latter left Hanzhong, Wei Yan Town and was surrounded by the whole army to resist foreign enemies. If the enemy attacks, he can't get in. In the battle of prosperous times, Wang Pinghan rejected Cao Shuang and accepted this system. Wei suggested that although it conforms to the meaning of "emphasizing the door" in Zhouyi, it is appropriate to defend against the enemy without making profits. If you don't hear the enemy's voice, all around you will gather troops to gather in the valley and retreat to the two cities of Han and Le, so that the enemy can't enter the peace and guard it again to keep it. One day, let the military patrol go hand in hand to overcome its shortcomings. If the enemy can't tackle key problems, there will be no scattered valleys in the wild, and the thousands of miles of grain fields in the county will naturally be tired. On the day of withdrawing troops, then the cities joined forces to patrol the war with the Israeli army, which was also a technique to stop the enemy.

Prior to this, Wei Yan, Zhuge Liang, Wang Ping and others all adopted the defensive strategy of relying on the dangerous terrain at the mouth of Qinling Mountain to make the enemy unable to attack. However, Jiang Wei easily gave up the danger, which led to the smooth entry of the enemy and the rapid fall of Shumen Hanzhong.

When Fa Zheng advised Liu Bei to try his best to capture Hanzhong, the importance of Hanzhong to Shu was very obvious: "If you gather many people to discuss it, you can overcome it. In Kerri, farmers will accumulate grain and watch the gap. In the world, they can defeat the enemy and honor the royal family. In the middle, they can eat away at harmony and coolness and expand their territory. Secondly, they can get to the point, which is a lasting solution. It's time to cover the sky with me. " Yang Hong also said to Zhuge Liang: "Hanzhong is the throat of Yizhou, and there is still a chance. Without Hanzhong, there would be no Shu State, and this family would be in trouble. In this matter, men should fight and women should be lucky. What are the questions about sending troops? "

Therefore, Jiang Wei's self-righteous change of Hanzhong's defense strategy was the first reason for the military failure of Shu's demise.

2. When Wei Jun invaded on a large scale, it failed to reinforce Yangpingguan quickly, which was one of the reasons why Hanzhong finally fell. Who should bear this military responsibility?

A lot of opinions adopted this record-six years later, Wei Biao said, "I heard that Zhong was going to run the army in Guanzhong, and if he wanted to make progress, he sent Zhang Yi and Liao Hua to guard Yang 'an Pass and Bridge, just in case. "Hao Zheng, a ghost witch, said that the enemy would not come to him in the end, and the ministers didn't know about it. (Jiang Weichuan)-So, the responsibility for the unfavorable reinforcement was put on the head of the late master and Huang Hao.

However, don't ignore the following records-He Zhong will go to Luogu, Wargo will enter the stack, and then send a right car to ride Liao Hua's view of "China's aid", a left car to ride Zhang Yi's assistant general, Dong Jue's view of Yang 'an Pass, etc., thinking that all foreign aid will be provided. (Jiang Weichuan)-This shows that before Zhong Hui and Wargo prepared to attack, the latter actually sent reinforcements in time according to Jiang Wei's suggestion. Therefore, the negative responsibility of this reinforcement should not be borne by the late master and Huang Hao.

Then, since the late Lord sent reinforcements in time, why is it not good for the late Lord's reinforcements? In fact, it is also recorded in Jiang Weichuan-comparing the level tone, I heard that Wei sent Zhuge Xu to Jianwei, so I stayed there. At the end of the month, Wei was destroyed by Wargo and still lived in. -It was Zhang Yi, Dong Jue and other generals who stayed here for more than a month without authorization after arriving at level tone, instead of timely reinforcements.

The level tone here should refer to the area around the level tone bridge, because Jiang Wei was in the level tone stack, and the reinforcements did not meet Jiang Wei. It's only170km from here to Yangpingguan, which is 390 Li Han. Even if you walk 30 miles a day, you can walk it in half a month.

Why do several generals lead reinforcements to stay here? Because I heard that Wei Jun attacked Jianwei. Maybe some people don't quite understand why Wei Jun attacked Jianwei, so the reinforcements have to stay at Yinping Bridge. The reason is that Wei Jun's attack on Jianwei's front line means that it may go south and directly seize the bridge in Yin Ping. Because Jiang Wei's main force is still stuck in the stack at this time, once Yin Pingqiao is occupied by the enemy, Jiang Wei's main force will be cut off and the whole army will be wiped out. It is precisely because of this concern that these reinforcements stayed here for more than a month and did not reinforce Yangpingguan in time.

Therefore, it is obvious that Zhang Yi and Dong Jue should be responsible for the disadvantage of the reinforcements in Yangpingguan, and indirectly, Jiang Wei is also responsible, because he has been detained for a long time, and the reinforcements dare not leave the Yinpingqiao.

3. Jiang Wei is fully responsible for the long-term detention of the main forces of Shu army in remote areas and their failure to return to China.

As we know, Tuzhong is located in the remote northwest of Yin Ping County, which is the frontier base for the Shu army to attack the northwest of Wei, and also the place where Jiang Wei later avoided disaster. This place can be said to be useless for the defense of Shu.

As we know, Shu defends against the north: Hanzhong in the northeast, relying on the danger of the ancient mouth of Qinling, can achieve the goal of defeating the strong with the weak;

Jiange and Baishuiguan in the middle are guarded by one person, which is beyond everyone's reach.

Due north of Chengdu is blocked by the rugged, dangerous and uninhabited Minshan Mountain.

The north of Yinping is blocked by Minshan Mountain, and only one route is connected. Once cut off by the enemy, it will be completely finished.

Therefore, we have never understood why Jiang Wei led the main force to stay in the stack, which is useless to the defense of Shu, since we already know that Wei Jun will attack on a large scale.

We have to ask:

Jiang Wei asked the latter to send reinforcements to reinforce Yangping. Why didn't he lead the main force to retreat directly and organize defense?

Jiang Wei not only did not retreat, but asked the latter to send Liao Huajun to Yinpingqiao alone to protect his posterior road, which not only dispersed the reinforcements, but also delayed the precious time of organizing defense.

Why did Jiang Wei lead the main force of Shu army? Because Jiang Wei's corps is an offensive corps, Jiang Wei has been repeatedly attacking Wei's border defense with this force.

Therefore, I think the reasonable deployment is: when Jiang Wei gets the information that the enemy will attack on a large scale, he should take the initiative to give up the level tone (or leave only a few light troops) and retreat to the first line of defense at Yangpingguan. In this way, Chengdu's reinforcements will not stay in Yinpingqiao for more than one month, and Yangping's defense will be greatly strengthened, and there will be no loss of being chased and defeated by the enemy at Qiangchuankou.

4. The defensive loopholes in the level tone alley should be borne by Jiang Wei, who is in charge of all-round military affairs.

Some people may think that Jiang Wei's words are useless at this time, but they are not. From the latter and other generals, he has no objection to easily changing Hanzhong's defense strategy, which shows that Jiang Wei's words are still useful in the military. Major events such as changing the defense strategy have been said and counted. If 3000 people are deployed to defend a level playing field, I'm afraid no one will object, right?

But in fact, the Shu army neglected to guard against this road, which led to the successful smuggling of Wargo.

If there are 3,000 Shu soldiers in Jiangyou City, I dare not say that Wargo will be wiped out. At least relying on the castle, Wargo could not enter the Chengdu Plain.

5. Zhuge Zhan didn't get reinforcements in time, which led to the single-handedly elimination of Zhuge Zhan and the complete collapse of Chengdu. This responsibility lies mainly with Jiang Wei.

According to the Records of the Three Kingdoms, the meeting said: "Thieves Jiang Wei, Zhang Yi, Liao Hua, Dong Jue, etc. I escaped to death and wanted to have a good time in Chengdu. ..... D and other companies rode 40,000 to 50,000 people in unison, armored and equipped, and filled the valley in Sechuan. Hundreds of miles one after another, relying on its crowds, the square track goes west.

Therefore, we know that after Jiangchuankou's defeat, although Jiang Wei lost some troops, he still had 40,000-50,000 troops after joining hands with Yi Cheung, Liao Hua and Dong Jue and fighting fiercely with Zhong Huijun for a period of time.

As we know, the registered strength of Shu is only102,000, roughly deducting the loss of Hanzhong of 20,000, Qiangchuankou100,000, 5,000 in the east and 5,000 in the south. Together with Jiang Wei's nearly 50,000 men, Zhuge Zhan is only100,000 at most. At this time, Chengdu is already an empty city (there are about 2000 palace guards).

Zhuge Zhan actually has no actual combat experience, so Jiang Wei's sending troops to Huiyuan Zhuge Zhan should be the last and only chance.

Can Jiang Wei help? We all know the natural danger of Jiange. You don't need 50,000 people to defend Jiange, but 20,000 people are enough. So Jiang Wei can at least divide his troops by twenty thousand and return to Zhuge Zhan.

Even Deng Ai predicted Jiang Wei's return before sneaking into Yin Ping: Ai Shang said, "Now that the thief is out, we should take it. Starting from Yin Ping, I went from heresy to the pavilion in Deyang of Han Dynasty, and left Jiange for more than 300 miles to Chengdu. The attacker rushed to his heart. The guardian of Jiange must return to Fucheng, and then he will advance on the track; If the Jiange army does not return, the Fucheng army should be outnumbered. There is a saying in the military strategists' annals:' Take it by surprise and catch it by surprise.' Now cover up its emptiness and it will be broken. "(Deng Yichuan)

Of course, some people may feel that there is not enough time, but it is not. Blocking Wargo is located in Fuxian (now Mianyang, Sichuan), 380 km (0/68 km) away from Jiange/KLOC-and 284 km (0/25 km) away from Chengdu/KLOC-. If we March in a hurry, Jiange's reinforcements will arrive in Fucheng County one day later.

Therefore, as long as Zhuge Zhan stays in Fuxian for one day, he can reach the situation that 30,000 Shu soldiers attack 10000 Wargo.

Then, why can't Jiang Wei go back and forth with one soldier in his hand? There is no answer (I don't want to think too badly of Jiang Wei). But this responsibility can only be borne by Jiang Wei.

Second, my opinion.

If Jiang Wei, as the highest military commander of the Shu army, had not made so many strategic and tactical mistakes, Wei would not have perished so easily even if the political and economic situation of Shu was average.

In the whole campaign, there was no problem that the Shu army could not supply, and there was no problem that the Shu army mutinied because of political or economic problems (except that Jiang Shu surrendered because of power problems and Ma Su surrendered because he was unprepared). So it is possible for Shu to maintain its defense at least economically and politically.

Why180,000 Wei Jun quickly wiped out180,000 Shu army by relying on natural barrier terrain? I have to say that Jiang Wei's command error is the biggest reason.

Some people criticized the surrender of the late Lord, but what choice did the late Lord have at that time?

-and Shu said that the enemy was inconvenient, so the city guards were not allowed to deploy, and that Ai had entered the level tone, and the people were disturbed, so it was impossible to ban it. After the ministerial meeting, there is nothing to do. Or think that Shu and Wu, originally a harmonious country, should be able to rush to Wu; Or think that the seven counties in the south have blocked the danger and repelled it, which is easy to defend and should be able to go south. (Biography of Qiao Zhou)

1, fight. Because the enemy could not be expected to come in, the Yugoslav capital was unprepared and there were no available soldiers.

2. Going to Wu has been denied by Qiao Zhou's reasons;

There is no hope of success on this road.

4. kill yourself.

5. surrender to Wei.

In fact, only the last two can choose. But in the future, the possibility of choosing the fourth place is extremely small, otherwise he would not be such an emperor who has no opinion and is driven by his subordinates.

In short, after some discussion, we can clearly find that the late ruler has no right to speak in the military. Most of the military plans were formulated by General Jiang Wei, and the main force of the Shu army was also led by Jiang Wei. It was Jiang Wei's constant mistakes that led to the rapid collapse of the 65438+ Wan Shu Army. Of course, the superb ability of General Wei Jun is also an important factor. Because of Jiang Wei's mistakes, all of them were used by the enemy without exception.