An F-15E Strike Eagle assigned to Seymour Johnson Air Force Base, N.C., receives fuel from a KC-135 Stratotanker over the Gulf of Mexico during Checkered Flag 21-2, May 12, 2021. The large-scale aerial exercise designed to integrate fourth and fifth-generation airframes to enhance mobility, deployment, and employment capabilities of aviators and maintainers. (U.S. Air Force photo by Staff Sgt. Stefan Alvarez)