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Throughout Wei Yan's life, he was actually very lucky, at a young age, he not only became a general in Changsha City, but also defeated Zhang Fei's competitor after defecting to Liu Bei and became the Taishou of Hanzhong, and the position of Taishou in Hanzhong is somewhat similar to the commander of the border military region, after Liu Bei's death, Zhuge Liang also appreciated Wei Yan's courage and good fighting. Of course, some people may ask, when Wei Yan was born has not been determined, why do you think that Wei Yan is very young when he served as the Taishou Han Xuan of Changsha and the Hanzhong Taipuncy of Shu Han?
This is actually based on Zhuge Liang, after Zhuge Liang's death, Wei Yan's body was already very tough, and he could still lead the army to attack Yang Yi. However, no matter how perfect a life is, there will be regrets, and the same is true for Wei Yan, such as the Meridian Valley Scheme.
What exactly is the Meridian Valley Conspiracy? The Chronicles of the Three Kingdoms Wei slightly have their own sayings, the Chronicles of the Three Kingdoms record that Wei Yan asked himself to lead 10,000 strange soldiers to take the Meridian Valley Road, Zhuge Liang himself led the main force to take the Baochuan Road, and then the main forces of the two armies met in Tongguan, and combined forces to capture Luoyang and destroy the Cao Wei regime entrenched here.
Wei Luo's statement will be more detailed, Wei Yan said that he needs 5,000 elite soldiers, 5,000 grain transport soldiers, and march north through the Meridian Valley in the Qinling Mountains, Wei Yan estimates that his strange army can reach Chang'an within ten days, and then, Xiahou Nan will definitely abandon the city and flee, and Chang'an, which has no leader, can be easily captured, and after capturing Chang'an, he can collect grain everywhere, and there is no problem in holding Chang'an for more than 20 days, and then Zhuge Liang led the main force to Chang'an to meet him, and finally swept west of Xianyang.
According to the Chronicles of the Three Kingdoms, the ultimate goal of Wei Yan's strategy is to seize Tongguan and break through Luoyang, and Wei Luo's statement, Wei Yan's ultimate goal has become to take the area west of Xianyang. Xianyang during the Three Kingdoms period belongs to **? Xianyang belongs to Yongzhou and belongs to the Yongliang area of Cao Wei. There are two theories about the Meridian Valley conspiracy, which will be analyzed one by one.
Let's first analyze the more bold statement, Zhuge Liang and Wei Yantongguan will join forces and capture Luoyang. However, from Sichuan to Tongguan, there must be Chang'an in the middle, if Wei Yanxue Deng Ai goes on an adventure, go to the sword to take the edge, bypass Chang'an and take Tongguan. Tongguan was captured, and the Chang'an guard Xiahou Nan was wasted and timid, he would definitely send troops, even if he didn't dare to send troops, Cao Wei would definitely force Xiahou Nan to send troops. What does this mean, it shows that Wei Yan's back road is broken, and under the condition of martial law in Chang'an, Zhuge Liang's main force will not be able to meet Wei Yan for a while.
And then what will Cao Wei do? In fact, there is no doubt about this, even if Zhuge Liang's main force contained all the Cao Wei soldiers and horses in the Yongliang area, and then there were about 100,000 soldiers and horses in Jingzhou and Yuzhou, about 100,000 soldiers and horses in Xuzhou and Yangzhou, and about 100,000 to 150,000 soldiers and horses in Luoyang and its surroundings. These soldiers and horses do not need to be dispatched, as long as some of them are dispatched, they can realize the annihilation of Wei Yan, the so-called strange army, in Tongguan.
As for the second one, it doesn't feel so radical, take Chang'an, and then sweep Yongzhou, this conspiracy may be to retreat, expand the living space of Shu Han, advance, it is equivalent to the garrison at the door of Cao Wei's house, and it can capture Tongguan at any time, take Luoyang and destroy Cao Wei. However, when we substitute for the characters of the time, we will know one thing.
Although we know now that Xiahou Nan stationed in Chang'an is a straw bag, at that time, whether it was Zhuge Liang and Wei Yan, they didn't know what kind of person Xiahou Nan was at the beginning, let alone against Xiahou Nan, why did Wei Yan conclude that Xiahou Nan would definitely be cowardly? Will you abandon Chang'an? Just because he is a colt and a son of a nobleman? Isn't Cao Zhen and Cao Xiu also the children of nobles? As a result, one became one of Zhuge Liang's most troublesome enemies, and the other relied on his own strength to defeat the Jianghuai defense line that Zhou Yu, Lu Su, and Lü Meng, the three governors of Eastern Wu, had worked hard to build.
In addition, there is a very important flaw, why does Wei Yan think that Zhuge Liang can sweep Yongzhou with the main force? The total number of troops in the Yongliang area is as high as about 60,000 to 70,000, Zhuge Liang's Northern Expedition, Shu Han's total strength is more than 100,000, but these troops are not all possible to go into battle, it is said that Shu Han has about 30,000 to 50,000 soldiers and horses in Chengdu, and there are about 20,000 to 30,000 troops in Dongwu, Zhuge Liang can only use the total strength of the Northern Expedition is only about 40,000 or 50,000, and then 10,000 soldiers and horses will be divided into Wei Yan to fight Chang'an, then, Zhuge Liang can only use to sweep Yongzhou. 340,000 vs. 670,000, this disparity in strength.
In addition, Cao Wei's Yongliang Military Region fought with the Shu army all the year round, and it was very strong, and it was very familiar with the tactics of the Shu Han army, the Battle of Dingjun Mountain and the Battle of Hanzhong, and it is said that the main force was the Yongliang Army. Therefore, the Yongliang Corps itself may have excellent military quality, and the strength of the army may be half of that of Shu Han, plus the numerical advantage, let Zhuge Liang lead the main force to Yongzhou, are you sure that he is not going to send people's heads?
Finally, we can also ** about what conditions are needed for Wei Yan's Meridian Valley Conspiracy to succeed, first of all, the focus of the Meridian Valley Conspiracy lies in the Meridian Valley Conspiracy, more precisely, in the Perimeter Soldiers, the Meridian Valley Conspiracy is theoretically feasible, no problem, the real variable lies in the external conditions.
Many people denied this strategic idea because Gao Yingxiang, the king of the late Ming Dynasty, used the Meridian Valley strategy to defeat and die, which is not right, why did Gao Yingxiang die in the Meridian Valley. The Meridian Valley conspiracy mainly relies on surprise attacks and quick solutions, but how did Gao Yingxiang do it? He knocked the Sanhe Pass on the way to the Meridian Valley Road, but he didn't expect the Sanhe Pass to be so difficult to fight, and fought for four days, in these four days, the general army of the Sanhe Pass asked Sun Chuanting for help, Sun Chuanting contacted Hong Chengchou to encircle and suppress Gao Yingxiang together, and after Gao Yingxiang took the Sanhe Pass, Sun Chuanting also completed the ambush and encirclement of Gao Yingxiang. Therefore, the first condition for the Meridian Valley conspiracy is to take it by surprise and attack it unprepared.
Secondly, in order for the Meridian Valley conspiracy to succeed, it is very important to have enough troops, both to be able to contain the enemy's main force and make the enemy's main force have no time to look westward. It is also necessary to ensure that you can still have sufficient reinforcements. However, then again, with such sufficient troops, is it necessary to carry out such a Meridian Valley conspiracy?
Finally, and most importantly, it is necessary to be completely sure that the other party's military commander is a straw bag who does not understand military affairs, otherwise, this strategy, even if it is a third-rate general, can be easily cracked. Therefore, Wei Yan's Meridian Valley plot has the possibility of success, but it is difficult to realize. Moreover, putting aside the reality and talking about the success rate itself is a hooligan, to take the simplest example, if Wei Yan surrendered to Cao Zhen, and then Zhuge Liang released the water, so that Wei Yan became the military boss of Cao Wei through military exploits, and then killed Cao Wei during Zhuge Liang's Northern Expedition, which theoretically has the possibility of success, but this connection is actually a bit fantastical.
All in all, Zhuge Liang was correct not to use Wei Yan's Meridian Valley scheme, after all, Wei Yan's scheme, once it fails, he will gamble on Shu Han's national fortunes, and neither Shu Han nor Zhuge Liang can afford to gamble. As for why Wei Yan insisted on such a bold idea? Personally, I think that it is estimated that Wei Yan wants to shock the world, and he wants to make meritorious contributions and go crazy.