A Colombian Air Force Kfir fighter jet crew chief communicates with a pilot while a Kfir pilot prepares for flight during Red Flag 18-3 at Nellis Air Force Base, Nev., July 27, 2018. The Colombian Air Force’s Kfir figher jets are training alongside U.S. Forces during Red Flag 18-3 in realistic air-to-air combat training scenarios. (U.S. Air Force photo by Staff Sgt. Angela Ruiz)