What are the main reasons for Li Zicheng's rapid downfall after its occupation?

There are many reasons for Li Zicheng's rapid failure.

The first is internal instability, which can be described as a mess.

Li Zicheng was born a king, and there were many factions in the team.

There are also rebel leaders who have followed him for many years, such as,,, and higher people. These people are more central to Li Zicheng, but they are not absolutely loyal and sincere. Are brothers who rebelled together in those days. They are more like partners and have not established a serious relationship between superiors and subordinates. Li Zicheng had to be gentle and kind to them, and on the one hand, more kind, coaxing them forward.

Then other rebels joined in. For example, Luo Rucai is nicknamed Cao Cao. A large part of Li Zicheng's team is Luo Rucai's team. These people only listen to Luo Rucai, not Li Zicheng. Li Zicheng and Luo Rucai are partners on the surface. Luo Rucai can and is ready to leave Li Zicheng at any time. And Yan Li, Mrs. Red's team, is in a similar situation.

Ming army was forced to surrender. After Li Zicheng breached Kaifeng, he entered Shanxi. The Ming army in Datong, Fu Xuan and other places felt that the tide of the Ming Dynasty had gone, and they surrendered to Li Zicheng in succession. Li Zicheng's strength has grown rapidly and expanded rapidly. It looks strong, but it's actually puffy! These soldiers surrendered because they were forced to surrender, and they didn't really join. Ice will melt at the slightest sign of trouble.

Therefore, Li Zicheng's team composition is very complicated, and the interior is very loose. Li Zicheng's control over the opposing team is not strong either. In this case, you can only go against the wind and collapse quickly when you encounter difficulties.

Second, Li Zicheng made a series of tricks at the critical moment, which led to the defeat of the whole game.

One is the wrong treatment of Wu Sangui, which led Wu Sangui to surrender to the Qing army. Wu Sangui's forty thousand troops fighting capacity. If they join the Dashun Army, Dashun Army can completely compete with the Qing Army, at least there is no problem in defending Shanhaiguan. Wouldn't it be wonderful to go through the customs and sweep the Qing army when the situation in the customs is stable and the strength is enriched? !

It's a pity that Li Zicheng and his gang were greedy and pushed Wu Sangui back. After Wu Sangui took refuge in the Qing army, the Qing army became stronger. Moreover, the Shanhaiguan gateway is wide open, and Dashun Army is in a completely passive situation strategically.

Second, the Dashun army was rapidly corrupted and its combat effectiveness was seriously reduced.

Third, Li Zicheng has no solid foundation and ground. Li Zicheng is a famous "rogue", rogue rogue, moving around. Eat everywhere. Catch wherever you hit it. Without a solid foundation and land, there will be no stable troops, wealth and food sources. The whole Dashun army looks huge, but in fact it is a rootless duckweed. Therefore, after the defeat of Shanhaiguan, Li Zicheng retreated again and again, which was always untenable. Finally, he was defeated and died.