U.S. Air Force Senior Airman Brion Humenay, 926th Aircraft Maintenance Squadron avionics specialist, works on the nose of an F-15 Eagle during the Mission Employment Phase exercise, Dec. 7, 2012, at Nellis Air Force Base, Nev. The exercise incorporates Air Force capabilities in diverse scenarios which can include aircraft in conjunction with space and cyberspace assets. (U.S. Air Force photo/Senior Airman Brett Clashman)