Deputy Secretary of Defense Steve Feinberg administers the oath of office to Dr. Troy Meink, officially swearing him in as the 27th Secretary of the Air Force during a ceremony at the Pentagon in Arlington, Va., May 16, 2025. Surrounded by senior defense officials, family members and colleagues, Meink took the oath as he assumed leadership of the Department of the Air Force, which oversees both the U.S. Air Force and the U.S. Space Force. (DoD photo by Senior Airman Madelyn Keech)