EIELSON AIR FORCE BASE, ALASKA -- Airman 1st Class Carl Covington disassembles an oxygen mask and helmet for inspection during RED FLAG-Alaska 09-2 April 23 here. RF-A is an exercise that provides training in a simulated combat environment. Airman Covington is an aircrew flight equipment journeyman, 35th Operations Support Squadron, Misawa Air Base, Japan. (U.S. Air Force photo/Senior Airman Christopher Boitz)