Although Emperor Yi was later forced by Xiang Yu to move the capital, and then intercepted and killed by Yingbu on the river, this result had no causal relationship with "the one who enters the pass is the king".
There is nothing stupid about the covenant of "the first to enter the customs is the king", but it is very realistic.
If there are people who say that he is stupid, they may not know much about the situation in the world at that time, and they will have this misunderstanding.
(Inbetsu)
In the second year of Qin II, Yan, Zhao, Qi, and Wei all established themselves as kings, and the Xiang clan began to Wu... Xiang Liang broke the Qin army again, and he was proud. Song Yiyi, do not listen. Qin Yizhang Handan Bing, night rank hit Xiang Liang, the Great Broken Dingtao, Xiang Liang died. - "Takazu Honki"
Let's take a look at the context. In the second year of Qin II, Yan, Zhao, Qi, and Wei all established themselves as kings.
Xiang Liang also raised troops to fight with the Qin soldiers several times, and Xiang Liang began to become proud and complacent because of his victory over the Qin army, and was broken by the Qin general Zhang Handan, and the army was overthrown and killed.
After Xiang Liang's death, the main forces of these bandits in Chudi had been destroyed, and after Zhang Handan saw that this bandit plague had been solved, he began to turn around and go north to Zhao Di to join Wang Li's northern army.
(Xiangliang)
The demise of the Qin state was related to Zhang Handan's big heart this time, as long as he insisted on suppressing the bandits for several months, the bandits in Chudi would be destroyed, but he quickly turned north and gave the opportunity for The King of Huai, Xiang Yu, and Liu Bang to resurrect the dust.
Seen in the "Gao Zu Benji": Zhang Handan had broken the Liang army, and thought that the Chu soldiers were not worried enough, but crossed the river, attacked Zhao in the north, and broke it.
When it was, Zhao Xie was the king, and the Qin general Wang left the besieged Julu City, the so-called Hebei army.
At that time, everyone did not dare to fight with the Qin army, so under such fear, Xiang Yu and Liu Bang were attacking Chen Liu at that time, and after hearing that Xiang Liang was dead, they immediately returned to the army and did not dare to fight.
And King Huai was even more afraid to die, he moved the seat of government to "Pengcheng", and also did a delicate thing, he took over the army of Lü Chen and Xiang Yu.
(King Huai relocated to Pengcheng)
It can be seen from the seizure of military power this time that at the critical juncture, these people did not huddle together because of defeat, but fought for the control of the army, and everyone took care of their own interests first.
Found in the "Gao Zu Benji": In the third year of Qin II, the King of ChuHuai saw xiang Liang's army broken, fearful, and migrated to Pengcheng, the capital of Tai, and Lü Chen and Xiang Yujun took it upon themselves.
This kind of ununited arbitrariness shows that this anti-Qin organization is "loose" and has no discipline, and great Qin's defeat to this gang is really inexplicable.
In fact, we can see in history that when Zhang Handan went north to join Wang Li and wanted to destroy the "King of Zhao" in Hebei, all the anti-Qin princes did not want to save him.
(King Huai chose Song Yi because Song Yi understood his thoughts)
They had two mentalities at that time, one was that they were afraid that the Qin army was powerful, afraid that they would not be able to fight, they were not willing to lose their own strength in order to save others, and if they were destroyed by the Qin army, they would be finished; the second was that they hoped that Zhao Wang Xie would continue to consume the strength of the Qin army, and wait until the time was almost the same to see if he could "pick up peaches."
Even the King of Chu at that time had this in mind, but "Zhao asked for help several times", and he "had no choice" to send Song Yi to save him, and Song Yi was bent on implementing the mind of the leader of the King of Chu to save Hebei.
Found in the "Xiang Yu Benji": Song Yiyi, "Now that Qin attacks Zhao, if it is victorious, then the soldiers will stop, and I will accept it; if I do not win, I will lead the troops to the west and march west, and I will lift Qin Yi." Therefore, it is better to fight Qin Zhao first. ”
It can be seen that at that time, the King of Chu's "first entrant to Guanzhong, Wang Zhi" was to draw a large cake for Liu Bang to see, and Xiang Yu was song Yi's deputy general, which had nothing to do with him.
Because the Qin army was powerful at that time, who could have imagined that Liu Bang could invade the mainland of Great Qin?
(Liu Bang into the guanzhong)
Unexpectedly, Xiang Yu seized military power more fiercely than the King of Chu, directly killing Song Yi in the military tent, seizing Song Yi's military power, and also winning the Qin army.
Therefore, it is very reasonable for historians to attribute an accidental factor in the demise of Qin to Xiang Yu's "broken cauldron", because the situation in the world at that time was not optimistic about the anti-Qin forces.
Everyone was watching, it was Xiang Yu, this guy, breaking the routine, not afraid to consume his own strength to help the "friendly army", he was really anti-Qin. (Interesting in this sentence)?
(Xiang Yu)
Therefore, "the one who enters the pass is the king" is just a simple method of encouragement, but the situation that developed later made the King of Chu Huai unable to keep up with the rhythm, because Xiang Yu's strength grew infinitely.
In that era, strength was the last word, and the slogan of the King of Chu was correct, after all, if the Qin state was not destroyed, the anti-Qin grand plan could not be carried out, and everyone understood this theory, and it had nothing to do with stupidity or stupidity.