"The History of the Three Kingdoms" records: "This county is Yi 'an, so it is advisable to have Longyou Ping, so there is no need to delay." Zhuge Liang thinks this plan is inappropriate and very dangerous. It is better to take a smooth road and take it as it is, so as to obtain Longyou safely and make no mistakes, so Wei Yan's plan was flatly rejected. Why didn't Zhuge Liang adopt "Woods Valley"? Is it really just dangerous? You know, fighting is very dangerous and always pays attention to surprise. Zhuge Liang's Northern Expedition was to capture Chang 'an. Wei Yan put forward such a clever plan, why not give it a try?
First, Zhuge Liang's strategic goal is incompatible with Wei Yan's whimsy. When Zhuge Liang met Liu Bei at the beginning, he had already made a clear plan: "If the world changes, Jingzhou soldiers will turn to ten thousand and Luo, and Yizhou people will be led out of Qinchuan." It can be seen from here that Zhuge Liang's strategic planning is very clear. When the world changes, we will send troops from Jingzhou and Yizhou respectively. So what is the situation of Shu at this time?
First of all, although Jingzhou belonged to Shu Han, it was later defeated by Guan Yu. In other words, Zhuge Liang's strategic plan of "turning Jingzhou soldiers into tens of thousands and Luo" does not conform to this article. Secondly, Liu Bei was already dead after the battle of Yiling, so he naturally could not "lead Yizhou people out of Qinchuan". Therefore, none of these conditions are met.
Zhuge Liang's later strategic goal was to "set the Central Plains in the north, eliminate traitors and murderers, revive the Han Dynasty and return to the old capital." At that time, the capital of the Eastern Han Dynasty was in Luoyang, and Wei Yan's goal of "Woods Valley" was west of Chang 'an, so it was impossible to "restore the capital", let alone revive the Han Dynasty. The situation at that time was very clear, Shu Han was the weakest, and Cao Wei occupied almost two-thirds of the world. It is obviously impossible to achieve Zhuge Liang's strategic goal by Wei Yan's high opinion alone. Therefore, when Wei Yan's plan was inconsistent with his strategic goal, Zhuge Liang did not adopt it.
Second, Zhuge Liang's Northern Expedition was not a secret to Cao Wei. Generally speaking, a strange plan really means "strange" and "surprise". However, when Wei Yan put forward this strange plan, Cao Wei already knew Zhuge Liang's plan. In the five-year imperial edict of Jianxing, the goal of Shu's northern expedition to "restore the capital" has been announced to the world. Moreover, it was nine months before and after Zhuge Liang led a great army to set up Hanzhong and held a military meeting.
For such a long time, Cao Wei must have made all the preparations, so Wei Yan's strategy could not surprise the enemy. Even if the plan is careful and meticulous, it will be greatly discounted. Therefore, if Cao Wei can suddenly attack without any preparation, there may be some chances of winning.
Thirdly, Wei Yan neglected Xia Houmao. Wei Yan dared to propose "Woods Valley" because he thought Xia Houmao was a loser. As long as he goes with his troops, Xia Houmao will surely run away in fright. In the Three Kingdoms, Wei Yan said to Zhuge Liang, "I heard that Yan Yan is coming, so let's escape by boat."
But is Xia Houmao really such a coward?
Of course not. "The History of the Three Kingdoms" records: "Naturally, there is no military strategy, but it is easy to treat students ... Later, my younger brothers did not follow the etiquette and blamed them several times, and my younger brothers did not dare to see the treatment.
. "Thus, although Xia Houmao is not very good at fighting strategy, he loves management and is not a useless person who only knows how to get old. In addition, when Xia Houmao saw that his younger brothers violated etiquette, he severely reprimanded them many times, which showed that he was a person who attached importance to etiquette and laws. Obviously, he will not be as timid as Wei Yan said, to the point of "fleeing by boat as soon as he heard about the election".
Besides, even if Xia Houmao can't fight again, there are tens of thousands of soldiers stationed there in Chang 'an, and Chang 'an Yugoslav capital is strong, so no one can attack if they want to attack. To say the least, even if Xia Houmao is a loser, there are Guo Huai and Cao Zhen behind him. Therefore, Wei's plan looks strange, but if it is really adopted, the effect will be another matter.