An F-16 Fighting Falcon fighter jet assigned to the 64th Aggressor Squadron (AGRS) begins its refueling run over the Nevada Test and Training Range (NTTR) during a Red Flag 21-1 exercise Feb. 1, 2021. The NTTR, is comprised of more than 12,000 square miles of air space and 2.9 million acres of land where pilots execute missions during Red Flag. (U.S. Air Force Photo by Airman 1st Class Dwane R. Young)