Airman 1st Class John McCulloch, A-10 Crew Chief, 175th Maintenance Squadron, Maryland Air National Guard, works on an A-10C during Exercise Red Flag – Alaska 14-3, Eielson Air Force Base, Ak. Exercise Red Flag – Alaska is a 10 day exercise that is 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. (Air National Guard photo by Senior Master Sgt. Ed Bard/RELEASED)