An E-3 Sentry Airborne Warning and Control System(AWACS) prepares for in-flight refueling from a KC-135 Stratotanker, October 4, 2019 over an undisclosed location. The AWACS is an airborne warning and control system aircraft that provides an accurate, real-time picture of the battlespace to the Joint Air Operations Center. (U.S. Air Force photo by Senior Airman Roslyn Ward)