In-service officers go to military schools for further study, which is determined by the requirements of the promotion system for officers. At present, the army requires officers to undergo a certain level of officer training before being promoted to a certain position. For example, commanders must be trained in intermediate command colleges and advanced command colleges before they can be promoted to regimental posts.

Modern warfare is a high-tech war. It is difficult for an ordinary soldier to understand how the war is carried out in a high-tech state. The role played in modern wars is laid-back, and the military academy is how to let soldiers know this and adapt to such a war environment. Therefore, only soldiers who come out of military schools can better command modern troops.