Airmen assigned to the 437th Airlift Wing depart a C-17 Globemaster III at Alpena Combat Readiness Training Center, Mich., May 16, 2021 during exercise Mobility Guardian 21. The annual training accelerates change for the Air Force and Air Mobility Command by developing the force and advancing warfighting capabilities to enhance our ability to project the Joint Force and ensure strategic deterrence. (U.S. Air Force photo by Staff Sgt. Joseph Pick)