EIELSON AIR FORCE BASE, Alaska - A German Tornado taxis down the flight line during RED FLAG-Alaska 08-3 June 12, 2008. RF-A is a series of Pacific Air Forces commander-directed field training exercises for U.S. forces, providing joint offensive counter-air, interdiction, close air support, and large force employment training in a simulated combat environment. (U.S. Air Force photo/Staff Sgt. Tia Schroeder)