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Senior Airman Danele Belovarac, 3rd Airlift Squadron C-17 loadmaster, shields her eyes from the sun while pilots do final pre-flight checks, Sept. 24, 2019, at Fairchild AFB, Wash., in support of exercise Mobility Guardian 2019. Exercise Mobility Guardian is Air Mobility Command's premier large-scale mobility exercise. Through robust and relevant training, Mobility Guardian improves the readiness and capabilities of Mobility Airmen to deliver rapid global mobility and builds a more lethal and ready Air Force..(U.S. Air Force photo by Tech. Sgt. Esteban Esquivel).