U.S. Army Sgt. 1st Class Adam McQuiston, Fort Leonard Wood, Mo., drill instructor, explains the process of clearing a room to Soldiers as part of a graded station during the annual Drill Sergeant of the Year competition, hosted by Initial Military Training, U.S. Army Training and Doctrine Command, at Fort Eustis, Va. The yearly competition is designed by the previous year’s winner and is meant to challenge each drill sergeant both physically and mentally. (U.S. Air Force photo by Senior Airman Wesley Farnsworth/Released)