A E-3 Sentry assigned to the 962nd Airborne Air Control Squadron takes off from Joint Base Elmendorf-Richardson, Alaska, Aug. 5, 2020. The E-3, also known as the Airborne Warning and Control System, is equipped with a rotating radar dome that provides air surveillance over land or water to identify and track friendly and enemy aircraft. (U.S. Air Force photo by Alejandro Peña)