Launch Line Air Force pilots prepare for launch at Nellis Air Force Base, Nev., Jan. 31, 2019, during Red Flag 19, an aerial combat exercise. SHARE: Download: Full Size (1.3 MB) Tags: Red Flag , Exercises, Air Force Credit: R. Nial Bradshaw, Air Force VIRIN: 190131-F-OD616-0001C.JPG Photo Gallery