U.S. Air Force Gen. David W. Allvin, Vice Chief of Staff of the Air Force, administers the oath to members of the Air Force ROTC at the University of Louisville in Louisville, Ky., April 22, 2022. Allvin was in town for the Thunder Over Louisville air show, which celebrated the 75th anniversary of the United States Air Force. The Kentucky Air Guard served as the base of operations for military aircraft participating in the event. (U.S. Air National Guard photo by Tech. Sgt. Joshua Horton)