Now there is no "direct" promotion, and the so-called promotion is just a trip to the military school. At present, the national policy is that officers must come from military schools. This is the knowledge age, and it is impossible to get quick success and instant benefit. There are short-term training courses in military schools, but they are all for on-the-job cadres and national defense students. The promoted soldiers can only study honestly for three years in junior college or four years in undergraduate course.