EIELSON AIR FORCE BASE, Alaska --A German Air Force pilot goes through pre-flight inspections before participating in a RED FLAG-ALASKA exercise June 12. Red Flag-Alaska, a series of Pacific Air Forces commander-directed field training exercises for U.S. forces, provides joint offensive counter-air, interdiction, close air support, and large force employment training in a simulated combat environment. (U.S. Air Force photo/Airman 1st Class Christopher Griffin)