Royal Air Force Flight Lieutenant Ian Hart stands in front of a B-2 Spirit June 10, 2014, at RAF Fairford, England. Hart is part of a United States - United Kingdom exchange program, where he trains alongside American B-2 pilots. Since 2012, he has been flying the B-2 as part of the 13th Bomb Squadron, Whiteman Air Force Base, Mo. Hart is a GR4 Tornado pilot (U.S. Air Force photo/Staff Sgt. Nick Wilson)