A U.S. Air Force crew chief assigned to the 968th Expeditionary Airborne Air Control Squadron, taxis an E-3 Sentry aircraft for takeoff at Al Dhafra Air Base, United Arab Emirates, Aug. 28, 2021. In support of air-to-ground operations, the Sentry can provide direct information needed for interdiction, reconnaissance, airlift and close-air support for friendly ground forces. (U.S. Air Force photo by Tech. Sgt. Michelle Y. Alvarez)