DRILL SERGEANT SCHOOL

To Become A Drill Sergeant, You Always Have To Be "Squared Away"

A spot in Drill Sergeant School. It's one of the highest honors the U.S. Army can bestow a Non-Commissioned Officer (NCO). Only the most qualified NCOs are chosen to attend Drill Sergeant School, where they are trained to fulfill a role of utmost importance—the role of a Drill Sergeant. After all, Drill Sergeants teach new recruits every aspect of Basic Combat Training—which means they have the great responsibility of shaping recruits into the best Soldiers in the world.
NCOs who attend Drill Sergeant School are called Drill Sergeant Candidates. Their training is strenuous. The School's curriculum mimics Basic Combat Training, week for week, because Candidates must be experts in all facets of BCT to begin training recruits. They receive top-notch training from their Drill Sergeant Instructors because they'll soon be expected to deliver great training.

 http://www.goarmy.com/soldier-life/being-a-soldier/ongoing-training/specialized-schools/drill-sergeant-school.html