During the Li Zicheng Uprising, the government was corrupt, and farmers were faced with the situation of insufficient food and clothing. Even the land, the people's most basic food source, was occupied by the prince and grandson. Tens of millions of farmers in Qian Qian are not only oppressed by life, but also exploited by the landlord class. They have no food in their mouths. Li Zicheng was forced to be brutally exploited and oppressed by the ruling class because of debts since he was a child. This is why we must wage an uprising against the government.
Of course, since Li Zicheng can launch an uprising, it must have been arranged in advance and weapons were made. In history, many famous soldiers like to put the soldiers who can fight best at the front, so that they can defeat or disperse the enemy in one fell swoop. But Li Zicheng is not the same as before, but has created his own method. He divided the troops into five lines: the first line, composed of refugees; The second line, composed of former Ming soldiers; The third line is its own ordinary cavalry; The fourth line, their own elite cavalry; The fifth line, the general's family, wife and children and so on. These different ways of fighting were also one of the reasons for the success of Li Zicheng Uprising.
In a word, in any case, although Li Zicheng didn't become emperor for a few days, he rebelled for the people, overthrew the corrupt and incompetent government at that time, and gave them a breathing space.