Keeping eyes in the skies
An E-3 Sentry prepares to receive fuel from a 340th Expeditionary Air Refueling Squadron KC-135 Stratotanker during a flight in support of Operation Inherent Resolve May 27, 2017. The E-3 Sentry is an airborne warning and control system aircraft with an integrated command and control battle management, surveillance, target detection, and tracking platform. (U.S. Air Force photo/Staff Sgt. Michael Battles)