Wei suo system was founded by Zhu Yuanzhang, the founding emperor of Ming Dynasty. Soldiers usually farm and train in shifts. It not only ensures the food supply, but also allows the assembly of wartime attacks. Zhu Yuanzhang once proudly said that it costs nothing to raise a million troops like this. However, by the end of the Ming Dynasty, the medical care system had existed in name only. The main reason is that the commander of the guard station eats empty salaries, claiming to be a million-strong army, and actually one-tenth is good.
In addition, officers have to enslave soldiers to do private work for themselves. Fertile land was occupied by officers. Ordinary soldiers not only have to work for officers for nothing, but also have the worst land they can get. A lot of food is paid every year, and even officials have to increase their apportionment. In this case, the soldiers in the health station are no different from ordinary farmers. It is unrealistic to expect them to fight, and they will not work for the government.
Most importantly, at the end of the Ming Dynasty, officials used the money gained from exploitation to support their families. Servants are well-fed, well-dressed, and know who to follow, so their fighting capacity is naturally fierce. Basically all the resources are given to servants, and their equipment and all kinds of necessary fighting tools are the best. On the other hand, the nominal regular army needs resources without resources, and needs equipment without equipment. This naturally forms two extreme phenomena.