U.S. Army Lt. Col. Jayson Campbell, U.S. Army Training and Doctrine Command Special Troops Battalion commander, speaks after taking command of the battalion during a ceremony at Joint Base Langley-Eustis, Va., Feb. 9, 2018. Campbell, an Arizona native, has served as a commissioned officer in the Army since 2000. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)