Arms immersion
Leading by example, drill sergeant candidates at the United States Army Drill Sergeant Academy located at Fort Jackson, S.C., tackle the mud pit obstacle on the fit-to-win endurance obstacle course, June 17. Candidates from the U.S. Army, Army Reserve and National Guard spend 63 training days in the course preparing to become drill sergeants for the Army's four basic combat training posts. (U.S. Army photo by Sgt. 1st Class Brian Hamilton/ released)