Air Force Maj. Gen. Michael Loh, Adjutant General for the state of Colorado, presents the guidon to Brig. Gen. Floyd Dunstan, as he assumes command of the Colorado Air National Guard as the Assistant Adjutant General, May 6, 2017, Buckley Air Force Base, Aurora, Colo. The change of command ceremony is a deeply rooted military tradition that represents the formal transfer of authority and responsibility for a unit from one commanding officer to another. (U.S. Air National Guard photo by Staff Sgt. Michelle Y. Alvarez-Rea)