U.S. Army Lt. Col. Jayson Campbell, U.S. Army Training and Doctrine Command Special Troops Battalion incoming commander, left, accepts the unit colors from Maj. Gen. Paul Benenati, TRADOC deputy Chief of Staff, right, during a change of command ceremony at Joint Base Langley-Eustis, Va., Feb. 9, 2018. Campbell assumed command from Lt. Col. Mark Bailey. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)