A B-1 bomber assigned to the 28th Bomb Wing receives pre-flight preparations prior to a Red Flag 16-2 night training sortie at Nellis Air Force Base, Nev., March 10, 2016. Red Flag training sorties are typically flown in mass waves featuring various different types of aircraft, making communication and advanced coordination crucial in the pursuit of total safety for all involved. (U.S. Air Force photo by Senior Airman Joshua Kleinholz/Released)