In 262 BC, Qin and Zhao clashed over the Shangdang Heights in Korea, and to the surprise of the states, the war lasted for three years, and finally the Qin state won and occupied Changping, and the Zhao army died 450,000.
The Battle of Changping was not only the largest annihilation battle in ancient Chinese military history, but also a campaign that affected the pattern of the Warring States, and after this battle, the trend of the Qin state unifying the world was irreversible.
There were many reasons for the defeat of Changping, and zhao kuo, the main general of the Zhao army, was also one of them, if Li Mu was replaced by Zhao Kuo, could the Zhao state still win the qin state?

First, where did Zhao Guo lose?
The Battle of Changping was not an ordinary battle, at first it was only a small-scale conflict, and the two sides increased their troops and logistical materials, and in the third year, it became a war between Qin and Zhao.
From a military point of view, the Qin army could defeat the Zhao army tactically with its combat effectiveness, but it could not defeat the Zhao army led by Lian Po strategically.
The reason why the State of Qin was able to achieve victory was to rely on the overdraft of national strength and force the Zhao army to fight a decisive battle head-on, so as to give full play to its field advantages.
Zhao Guo lost because its national strength was weaker than that of Qin Guo, and it did not have the support of other princely states in diplomacy.
Why did the State of Zhao not receive the support of other princely states? At that time, the chancellor Yu Qing proposed that the State of Zhao should first negotiate with Wei and Chu, so that the State of Qin thought that the State of Zhao had gained the support of the princes and gave up the decisive battle with the State of Zhao.
However, King Xiaocheng of Zhao rejected Yu Qing's opinion, and not only that, but first negotiated peace with the Qin state. The various princely states saw that the State of Zhao did not contact them, negotiated with the State of Qin alone, and thought that the State of Qin had put forward conditions that the State of Zhao could not refuse, so they expressed their wait-and-see.
At the same time, if the Qin state is a "tiger", the Zhao state is a "wolf", and the tiger-wolf war is also in the interests of other princely states. Therefore, Zhao Guo did not lose to Lian Po and Zhao Kuo, but to Zhao Xiaocheng.
Second, what is Zhao Xiaocheng's ability to become a king?
Later, in the Defense of Handan, the Zhao army repelled the Qin army, and King Xiaocheng of Zhao instead prepared to go to Xianyang to see King Zhaoxiang of Qin, knowing that King Huai of Chu was killed 30 years ago, and also planned to cut six cities to the Qin state.
Isn't Yu Qing crazy when he sees this? The Qin army came to grab it, but afterwards you took the initiative to give it to him, so you asked Zhao Xiaocheng Wang, is the retreat of the Qin army because it cannot be beaten or is it pitiful?
Obviously, it is easy to see that the Qin army withdrew because the enemy could not defeat the coalition army, so why did the Qin army send them to the city when it failed?
If you really want to cut the land, it is better to give it to the State of Qi, because since the Five Kingdoms cut down qi, the state of Qi and the state of Qin are already sworn enemies, and they will definitely join forces with the state of Zhao to attack the state of Qin.
And the State of Qin will certainly take the initiative to negotiate peace after seeing this situation, so han and Wei, the two countries that were feared by the State of Qin, will inevitably come to settle the knot when they see that King Zhaoxiang of Qin has held peace talks with the State of Zhao, and the State of Zhao will inevitably turn around.
King Xiaocheng of Zhao thought it was reasonable, agreed, and sent Yu Qing as an envoy to the State of Qi. The development of the matter was indeed as Yu Qing expected, the State of Qin took the initiative to send people to negotiate peace with the State of Zhao, and the State of Wei also came to send the State of Zhao to be a horse, but unfortunately it was rejected by King Xiaocheng of Zhao.
Third, what will happen to Li Mu when he comes?
In the Battle of Changping, if Li Mu was the main general of the Zhao army, his combat method would be the same as That of Lian Po, and he would not be able to hold out, and then he would be removed by King Xiaocheng of Zhao and replaced by Zhao Kuo.
Why did Li Mu stick to it like Lian Po? Because both are famous generals, they know when they can fight and when they can't fight, which is what the hero sees.
Why did King Xiaocheng of Zhao remove Lian Po? Because the Battle of Changping took too long, Zhao Guo was about to be dragged down, and King Xiaocheng of Zhao was anxious and eager to change the status quo, so he replaced Lian Po, who could not hold out, and replaced him with Zhao Kuo, who took the initiative.
In fact, the war is a continuation of politics, the problem of the Battle of Changping lies in the decision-making level of the Zhao State, and has nothing to do with the generals, even if Li Mu is exchanged for Zhao Kuo, the Qin State still operates to isolate the Zhao State.
Unless Li Mu had just appeared on the scene and could strike hard at the Qin army and force Qin Zhaoxiang to withdraw, the result would still be the same.
Even if the Battle of Changping was regarded as a purely military activity, Li Mu at that time did not necessarily have the certainty of victory in the face of Bai Qi. Therefore, even if Li Mu replaced Zhao Kuo, Zhao Guo would still lose this war.
(Reference: Chronicle of History)