An intruder in the Luke training camp! This F-16A is marked as the 'Boss Bird' of the 21 FS 'Gamblers', 56th FW, however, despite the U.S. markings the aircraft belongs to the Taiwanese Air Force, which uses it for flight training here at Luke AFB. Please note also the housing for the brake chute above the engine, U.S. versions don't have a brake chute.