What is the position of Du Wenlong University? He is an officer, but he knows all kinds of military knowledge.

Du Wenlong, a graduate of Shijiazhuang Army Command College, holds the rank of captain. Later, he studied at the National Defense University and was promoted to a military school of an advanced university. To put it bluntly, he is an officer studying military equipment of national defense law, so he is familiar with equipment of arms and services such as land, sea and air. This is also an expert in doing research. ! Hope to adopt! ! !