Maintenance Airmen with the 393rd Expeditionary Bomb Squadron conduct post-flight checks on a B-2 Spirit Stealth Bomber during Red Flag 21-1, at Nellis Air Force Base, Nevada, Jan. 22, 2021. Red Flag 21-1 is the U.S. Air Force's premier air-to-air combat training exercise that provides opportunity to enhance readiness and training as a joint force, enabling Whiteman to respond to any potential crisis or challenge across the globe. (U.S. Air Force photo by Staff Sgt. Sadie Colbert)