How big is the difference between the Ziwu Valley Qiuzhi and the sneak into Yinping?

First, the comprehensive national strength and military strength of the two are very different. The talents of Shu are withered, and the army is weak and the generals are few; the talents of Wei are abundant, and the army and horses are strong. Wei Yan only has 5,000 troops. Even if he succeeds in the sneak attack on Chang'an, he will be alone and unable to survive, and will inevitably be surrounded by Cao Wei's heavy troops. Once Deng Ai succeeds in his sneak attack, he will have the strong backing of Cao Wei's strong national power and military strength. Some people say: Deng Ai's attack was a sneak attack, and it has nothing to do with the overall strength of the army, right? In fact, it is not the case. Deng Ai traveled 700 miles from Yinping to Jiangyou with only 2,000 troops, but left nearly 30,000 troops along the way. After the surprise attack on Jiangyou, combined with the 30,000 troops and Jiangyou's surrendered troops, it was probably close to the total defense strength of Chengdu. .

Then they captured Fujian at lightning speed, which added a lot of strength. After conquering Mianzhu with superior forces, the Shu Han army collapsed across the board. Without the barrier of Mianzhu, Chengdu has basically become an isolated city. Therefore, Liu Chan had no choice but to surrender. Therefore, although Deng Ai's surprise attack on Jiangyou seemed to have only 2,000 troops, his follow-up troops actually arrived one after another, and by the time they finally arrived in Chengdu, they had nearly 40,000 troops. Just imagine if Deng Ai is not superior in terms of military strength, but wants to sneak attack Jiangyou with only 2,000 soldiers, and then conquer Mianzhu and Chengdu in one fell swoop. Unless the Shu army is made of clay, otherwise, with the strength of Mianzhu and Zhuge Zhan alone, Deng Ai will be defeated. Destroyed.