U.S. Army Sgt. Maj. William L. Platt, 1st Battalion, 210th Aviation Regiment outgoing sergeant major, left, and Sgt. Maj. Christopher Coolbaugh, incoming 1-210th Avn. Rgt. sergeant major, right, stand at parade rest after the 1-210th Avn. Rgt. change of responsibility ceremony at Fort Eustis, Va., Nov. 15, 2013. Platt is retiring after more than 30 years of service. (U.S. Air Force photo by Staff Sgt. Ciara Wymbs/Released)