U.S. Air Force Airmen assigned to the 20th Air Expeditionary Wing clean aircrew flight equipment during exercise Iron Hand 21-08 at Shaw Air Force Base, South Carolina, Aug. 24, 2021. Exercise Iron Hand 21-08 is designed to simulate agile combat employment operations, tested the Airmen's ability to generate sorties, establish effective command and control and incorporate base operating support elements at two locations. (U.S. Air Force photo by Senior Airman Jacob Gutierrez)