Why did Yan Di just win the first-class military exploits?

The man won the meritorious military service because he took the initiative to go to the front to fight after graduation.

1986, as soon as Yan Di graduated from the former Shijiazhuang Army Academy, he took the initiative to go to the front and face the bullets on the battlefield. He became the only student who won the first class and won the reputation of "steel platoon leader". When he returned from the battlefield, he faced graduation. He had many choices, but Yan Di just chose to stay in school and teach. From "steel platoon leader" to "steel teacher" for 37 years.

20 14, Yan Di just served as the leader of the blue army guidance and evaluation team. He commanded the simulated blue army for several years in a row, which was even harder than participating in the army and made outstanding contributions to the construction of the simulated blue army.