Sgt. Brad Kay, Royal Australian Air Force 36th Squadron aircraft technician, guides a C-17 Globemaster III aircraft auxiliary power unit into place April 19, 2016, during a class at the 373rd Training Squadron Detachment 12 at Joint Base Lewis-McChord, Wash. Kay is part of a class of six Airmen from the Royal Australian Air Force being trained at the detachment. (U.S. Air Force photo/Senior Airman Jacob Jimenez)