1. Soldiers
Some instructors who give military training to freshmen are soldiers, but not all instructors in university military training are soldiers. And famous schools like Tsinghua Peking University, when doing military training for freshmen, invite all active servicemen, and their ranks are generally not low, so they will have more opportunities and times to participate in military training, and have rich experience in military training for freshmen, which can be said to be a real "soldier king".
2. Military school students
Because the start time of high school or university is relatively concentrated every year, it is impossible to put most soldiers into military training. Therefore, the military training for freshmen in some schools is not completed by active servicemen, but some outstanding seniors are selected from some military schools to give military training to freshmen.
On the one hand, everyone is about the same age, and there is no generation gap in communication. On the other hand, students in these military schools can master how to train "recruits" in advance and accumulate experience for their future training.
3. Armed Police Force or Military Training Company
There are also some schools that select some policemen from the Armed Police Force or veterans from some companies specializing in military training in society to give military training to freshmen.