A U.S. Air Force KC-135 Stratotanker assigned to the 379th Air Expeditionary Wing refuels a U.S. Marine Corps EA-6B Prowler over Afghanistan, Dec. 30, 2014. The EA-6B is a mid-wing electronic warfare aircraft that can jam enemy air defense systems, radar and gather radio intelligence. (U.S. Air Force photo by Senior Airman James Richardson/AFCENT/RELEASED)