Airmen from the 28th Aircraft Maintenance Unit inspect safety wire placed on a B-1B Lancer aircraft filter gear box during Global Thunder 20 at Dyess Air Force Base, Texas, Oct. 22, 2019. Global Thunder is an annual command and control exercise that provides training opportunities for all of U.S. Strategic Command’s mission areas and tests joint and field training operations. (U.S. Air Force photo by Staff Sgt. David Owsianka)