Iceland eruption ends, training begins
Staff Sgt. Jeff Braun, a crew chief with the 115th Fighter Wing, Madison, Wis., buckles in Lt. Col. Charles Merkel, a pilot with the 115th FW, as they participate in Operation Northern Viking June 4, 2011 until Friday, June 10, training in Iceland with NATO forces focusing mainly on air-space protection. (U.S. Air Force photo by Senior Airman Ryan Roth)