Staff Sgt. Tyler Switzer, 437th Aircraft Maintenance Squadron aerospace maintenance craftsman, prepares a C-17 Globemaster III for a Joint Forcible Entry training event in support of the U.S. Air Force Weapons School Integration phase on a range near Nellis Air Force Base, Nev., Dec. 9, 2017. Thirty-seven C-17s, 21 C-130s and 120 Army paratroopers participated in the mobility portion of the WSINT phase during a simulated mass JFE event over a contested target. The event is designed to teach Airmen how to get safely to their target and direct airpower and follow-on forces to that target. (U.S. Air Force photo by Staff Sgt. Christopher Hubenthal)