Gunfighters arrive for Red Flag 15-3
A 391st Fighter Squadron F-15E Strike Eagle taxies on the runway at Nellis Air Force Base, Nev., July 7, 2015. Red Flag 15-3 is a realistic combat training exercise involving the air forces of the United States and its allies. The exercise is conducted on the 15,000-square-mile Nevada Test and Training Range, located north of Las Vegas.(U.S. Air Force photo by Senior Airman Brittany A. Chase)