An F-16 Fighting Falcon assigned to the 179th Fighter Squadron at Duluth Air National Guard Base, Minn., takes off from Eielson Air Force Base, Alaska, Aug. 10, 2015, during Red Flag-Alaska 15-3. RF-A is a series of Pacific Air Forces field training exercises for U.S. and partner nation forces, providing combined offensive counter-air, interdiction, close air support and large force employment training in a simulated combat environment. (U.S. Air Force photo/Senior Airman Ashley Nicole Taylor)