First, military training instructors in colleges and universities may be soldiers in the army. They usually train in the army and occasionally help the school with military training as university instructors.

I used to go to the army for military training when I was in college. Because the school playground was limited at that time, I chose to go to other places for military training. After arriving in the army, soldiers from the army gave us military training, and they would take us to practice the corresponding team atmosphere and queue exercises every day. Their training is very professional, which basically requires us to reach the level of soldiers. We can also see that instructors will be more professional, be stricter about some previous training, and have more professional guidance.

Second, military training instructors in universities may be physical education teachers in schools. Some schools have large playgrounds and enough military training bases, so they will arrange their own school staff to be instructors.

There are few college PE teachers who come to train, but it is not without them. They won't have special professional instructor training, and the content of teaching is basically a common phenomenon, just like their usual physical exercise. Physical education teachers usually have to be nice to their students. Sometimes, some students are not particularly strict. They will take the initiative to mingle with students and communicate with them more. I hope students can improve their physical fitness through this exercise.

Third, military training instructors in universities may be workers in training institutions. Their main task is to provide military training for all college students, which is part of their career.

Many instructors who come to school for military training are actually not very professional instructors. They are not from the army, but more from training companies. Their main job is military training for students. Although they dress like soldiers in the army, they may not be, but it cannot be ruled out, because it is possible for retired soldiers to engage in this profession. They will strictly ask students for military training, according to the standard model of the school, and finally complete the corresponding military training tasks.