Col. Joseph Sheffield, the 28th Bomb Wing commander, relinquishes Col. Chad Heyen, the 28th Maintenance Group outgoing commander, of his command of the 28th Maintenance Group on Ellsworth Air Force Base, S.D., August 4, 2021. The change of command ceremony is an honored tradition celebrated time after time when a new commander is chosen to command a squadron or wing. (U.S. Air Force photo by Airman 1st Class Jonah Fronk)