Drill sergeant through the columns
Army Reserve drill sergeant, Sgt. 1st Class Ervin Brewster, of Company C, 1st Bn., 518th Inf. Reg., 98th Training Div. (IET), inspects a formation of Clemson University Reserve Officer Training Corps cadets during a drill and ceremony lab that was being conducted by drill sergeants from the division, at Clemson University Sept. 3, 2015. (U.S. Army photo by Sgt. Ken Scar)