U.S. Army Command Sgt. Maj. John Wayne Troxell, Senior Advisor to the Chairman of the Joint Chiefs of Staff, smiles while telling a story about military personnel he has met throughout his 36-year career during an all-call in Hangar 43 at Tyndall Air Force Base, Fla., April 23, 2018. During the span of his career, Troxell has climbed not only the ranks of the Army, but is currently the highest ranking enlisted personnel across the Department of Defense. (U.S. Air Force photo by Airman 1st Class Solomon Cook/Released)