Airmen from the 455th Expeditionary Aircraft Maintenance Squadron perform maintenance on an EC-130H Compass Call Feb. 2, 2018 at Bagram Airfield, Afghanistan. The EC-130H Compass Call is an airborne tactical weapon system using a heavily modified version of the C-130H designed to disrupt enemy command and control communications and limits adversary coordination essential for enemy force management. (U.S. Force photo/Staff Sgt. Divine Cox)