Han Xin replaced Zhuge Liang's Northern Expedition and had no hope of success.
In this way, Han Xin's fans are definitely not happy, they will say that Han Xin is a soldier immortal, some are clever tricks, even if Sima Yi insists on not fighting, Han Xin also has a way. Dealing with the little Sima Yi is not a word, in a word, as long as it is a war, Han Xin can achieve victory.
In fact, looking closely at Han Xin's history, he also has a lot of solutions, after all, fighting a war also needs favorable conditions, the conditions are unfavorable to himself, and what he fights is a battle of uncertainty and a war of adventure.
Han Xin suffered the humiliation of crotch in his early years, he had a sword in his hand, according to the reason, he fought, the advantage was on Han Xin's side, why did Han Xin choose to be humiliated? This is because Han Xin has a problem that cannot be solved, killing the butcher, Han Xin will also be punished, both of them will be finished, Han Xin is not willing to suffer the humiliation of crotch, if there is a good solution, how can he drill people's crotch?
Some people will say that it is not a war, if you give Han Xin soldiers and horses, whoever fights with Han Xin will also be defeated. Han Xin can command thousands of troops and horses, attack everything, and be invincible; this is already an indisputable fact, but he won the battle only under the condition that he could win, not blindly.
Xiang Yu was the god of war in the late Qin Dynasty, before the Battle of Xiaxia, Xiang Yu maintained an undefeated record, during the Chu-Han War, Liu Bang personally attracted Xiang Yu's main force, Han Xin opened up territory for Liu Bang in the north, why not let Han Xin fight Against Xiang Yu at this time? If Han Xin directly defeated Xiang Yu, wouldn't the Chu-Han rivalry end earlier, wouldn't that save time and effort? Why didn't Liu Bang make such an arrangement?
The reason is that the Chu army is strong and strong, Han Xin went, and he is not Xiang Yu's opponent, Han Xin went to destroy the princes in the north, these people are not Han Xin's opponents, and if the princes are destroyed, Liu Bang's clique will become stronger, and finally with an overwhelming advantage, in the annihilation of Xiang Yu, it seems to be slow, but it can be a sure victory.
If Han Xin replaced Zhuge Liang's Northern Expedition, the conditions became Wei qiang and Shu weak, Han Xin's Shu state, economy, military are far inferior to Cao Wei, more important factors, The Hanzhong area, the defending side occupies an absolute advantage, not only the terrain is dangerous, easy to defend and difficult to attack, but also the attacking side because the road is difficult, the logistical supply is very difficult, this is also the reason why the counselor Fan Zeng suggested that Xiang Yu seal Liu Bang to the land of Bashu after the feast at the Hongmen Gate, he wanted to trap Liu Bang in the land of Bashu in Hanzhong, Fan Zeng could see this, It can be seen that it is quite difficult to get out of Hanzhong.
During the Three Kingdoms period, Cao Cao's military ability was stronger than Liu Bei's, Liu Bei occupied Dingjun Mountain, after slashing Xiahou Yuan, Cao Cao led the army to reinforce, Liu Bei concluded that Cao Cao's coming this time was also in vain, and as a result, Liu Bei could not hold out, Cao Cao could only return with a feather, indicating that it was also very difficult to attack Hanzhong from Guanzhong, unless your opponent's level was too poor, otherwise there was no chance of success.
The reason why Liu Bang was able to pacify Guanzhong in one fell swoop was because the opponent was too weak, Zhang Handan was a famous general of the Qin State, but now is not the past, the Battle of Zhang Handan Julu was a defeated general, after he surrendered to Xiang Yu, 200,000 Qin soldiers under him were killed by Xiang Yukeng, Zhang Handan once again led the Qin generals to block Liu Bang, are these soldiers still willing to fight for Zhang Handan? Besides, to fight for Zhang Handan's life is to fight for Xiang Yu's life, and Xiang Yu is an enemy of the Qin people, so you can imagine what the combat effectiveness of the army led by Zhang Handan looks like.
Zhang Handan was fighting against Liu Bang, there were no reinforcements, Xiang Yu was crusading against the State of Qi, he could not take care of the war in Guanzhong, and Guanzhong was not Zhang Handan alone, Xiang Yu sealed three kings in Qin, Yong Wang Zhang Handan, Zhai Wang Dong Feng, Sai Wang Sima Xin, the three kings divided, the unified command in wartime became a problem, it was inevitable that the three kings had their own selfish intentions, which gave Liu Bang the opportunity to break through each one and pacify Guanzhong in one fell swoop.
Zhuge Liang faced Guanzhong, and Cao Wei were a whole, as long as the war situation began, not only guanzhong troops to resist with all their might, Cao Wei would give support, Zhuge Liang's first northern expedition, laid down the three counties of Tianshui, Nan'an, and Anding, the Emperor of the State of Wei personally sat in Chang'an, commanded Zhang Gao and other generals to launch a counterattack, and drove Zhuge Liang back to his hometown in Hanzhong.
Han Xin replaced Zhuge Liang's Northern Expedition, which was also the result of this, fighting one or two victorious battles, can not change the situation of the enemy being strong and we are weak, Cao Wei reinforcements will continue to drive to the front line, and the Shu army can not withstand defeat, it is not easy to go out of Hanzhong, it is more difficult to replenish the soldiers, the supply of grain and grass is a big problem, in the absence of planes, trains and other means of transport, Han Xin relies on what to ensure that the front line grain and grass are sufficient, in the later stage met Sima Yi, who insisted on not fighting, people fighting a year of war of attrition is not a problem, Han Xin insisted on at most a month, not to be consumed to death If you want to attack, Sima Yi is defended by danger, there is no room for trickery, and don't underestimate Sima Yi's ability to lead troops, that is also a military expert, Han Xin is a little stronger than Sima Yi, and he is not much stronger.
Sima Yi's characteristic of leading the army was that he would not make a big mistake, and Han Xin had no opportunity to take advantage of it, so it was impossible to succeed in the Northern Expedition instead of Zhuge Liang.