What fatal mistakes did Xiang Yu make after entering the customs?

Xiang Yu's biggest regret is that he invited Liu Bang to drink after entering the customs, and he didn't kill Liu Bang at the Hongmen banquet, Xiang Yu still felt that it was always a villain to do this behind his back.

The fatal mistake made by Xiang Yu after entering the customs was mainly that he did not take Fan Zeng's advice during the Hongmen banquet, and released Liu Bang at that time, and later slaughtered the city and lost the hearts of the people, as well as the heart of killing the righteous emperor Chu Huaiwang.

His biggest mistake was to let the tiger return to the mountain, he drank with Liu Bang, and actually let Liu Bang go, his subordinates persuaded him to take advantage of this good time to kill Liu Bang, so as not to find him for revenge in the future, but Xiang Yu felt that this was a villain's behavior, and he disdained to do this.

The most important mistake was that he should not have killed so many prisoners of war in the Qin army, this move made him lose the hearts of the people, and then he killed Ziying, although Ziying was the monarch of the Qin Dynasty, he should not have been killed, which was also a political mistake These fatal mistakes led to Xiang Yu's final defeat.

Xiang Yu repeatedly said that the death of heaven is not a crime of war, which shows that he is arrogant and ignorant of blind talk; In the end, Jiangdong killed Wujiang himself, which shows that he failed to bear the humiliation.

In the Battle of Qixia, the Han army launched a strategic pursuit in a timely manner, actively mobilized reinforcements, and completely annihilated 100,000 Chu troops in less than a month, creating a successful example of large-scale pursuit warfare in ancient China.

It is not only the end point of the struggle between Chu and Han, but also the starting point of the prosperity of the Han Dynasty, and a milestone turning point in Chinese history, which ended the situation of the chaos at the end of the Qin Dynasty, unified China, and laid the foundation of the Han Dynasty for 400 years.

He didn't care about the people's livelihood at all, and the people didn't want to help him. Too brutal and will not take advantage of talents, he later entered Xianyang and killed the last emperor of the Qin State who had a very high popular heart at that time: Ziying.

and killed the crowd of onlookers at that time. And then there's no way to use stratagems. By brute force alone.

200,000 Qin soldiers were killed, and they were too upright and did not have a strict strategic plan in the war, and were finally defeated by Han Xin.

The most important mistake was that he should not have killed so many prisoners of war in the Qin army, this move made him lose the hearts of the people, and then he killed Ziying, although Ziying was the monarch of the Qin Dynasty, he should not have been killed, which was also a political mistake These fatal mistakes led to Xiang Yu's final defeat.

First of all, after entering the customs, because of the contradiction between the enemy and me, he killed 200,000 Qin troops. This is one of its sins. Later, he gave up Guanzhong and divided the princes on a large scale. This has left him with a fatal hidden danger.