US Air Force (USAF) AIRMAN First Class (A1C), Gabriel Liddycoat, Maintenance Specialists, 35th Fighter Wing (FW), Misawa Air Base (AB), Japan, stands atop portable aircraft stairs to repairs an anti-collision light on the vertical stabilizer of a USAF F-16 Fighting Falcon aircraft on the flight line at Nellis Air Force Base (AFB), Nevada (NV), during Exercise RED FLAG 2003. Red Flag is currently the most realistic simulated air-warfare training exercise held anywhere in the world. It regularly involves the air forces of the United States and its allies