Airmen with the 9th Aircraft Maintenance Unit perform post flight inspections on a B-1B Lancer aircraft taxi after completing a training sortie during a Copper Ring exercise at Dyess Air Force Base, Texas, Sept. 13, 2021. The exercise enabled Airmen to improve their skillsets in a simulated real-world training environment. (U.S. Air Force photo by Staff Sgt. David Owsianka)