Staff Sgt. William Urquhart, 755th Aircraft Maintenance Squadron aerospace propulsion, inspects an EC-130H Compass Call engine during Aviation Rotation 19-2 at Krzesiny Air Base, Poland, June 13, 2019. Compass Call is an airborne tactical weapon system that uses noise jamming technology to disrupt enemy command and control communications and deny time-critical adversary coordination essential for enemy force management. (U.S. Air Force photo by Staff Sgt. Jonathan Snyder)