07/18/2017: Exercise Red Flag 17-3 Commences in Nevada By Air Force Airman 1st Class Andrew Sarver, 99th Air Base Wing NELLIS AIR FORCE BASE, Nev., July 11, 2017 — Red Flag 17-3, a three-week air-to-air combat joint training exercise, commenced here yesterday, Air Force officials said. Officials said Red Flag consists…