Iceland's volcanic ash affects Mildenhall exercise
Prior to flying operations being grounded, an F-16 Fighting Falcon from Spangdhalem Air Base, Germany, refuels off a 100th Air Refueling Wing KC-135 Stratotanker during exercise Brilliant Ardent April 15, 2010, at Royal Air Force Mildenhall, England. (U.S. Air Force photo/Tech. Sgt. Kevin Wallace)