Add Yahoo as a preferred source to see more of our stories on Google. Before they train US Marine recruits, drill instructors must graduate from Drill Instructor School. Insider spent three days at ...

Exploring how each U.S. military branch uniquely shapes recruits through distinct, challenging basic training experiences.

VIRGINIA BEACH, Va. — More than 40 feet up the tower at Fort Jackson, Army recruit Robert Smith missed setting his feet on the 4-by-4 plank from which he was to start rappelling down. “I said: ...