Two KC-46A Pegasus pilots from the 97th Air Mobility Wing, Altus Air Force Base, Okla., conduct preflight checks for an incentive flight at Ellsworth AFB, S.D., July 21, 2021. The KC-46A visited Ellsworth to participate in exercise Combat Raider 21. (U.S. Air Force photo by Airman 1st Class Quentin K. Marx)