Tech Sgt. Brian Duell, left, 437th Aircraft Maintenance Squadron aerospace maintenance craftsman, and Airman 1st Class Nicolas Rainey, right, 437th AMXS aerospace maintenance technician, perform ground maintenance on a C-17 Globemaster III in preparation for a Joint Forcible Entry training event in support of the U.S. Air Force Weapons School Integration phase Dec. 8. Thirty-seven C-17s, 21 C-130 Hercules and 120 U.S. Army paratroopers participated in the mobility portion of the WSINT phase during a simulated mass JFE event over a contested target Dec. 9, on a range near Nellis Air Force Base, Nev. The event demonstrates the U.S. Air Force’s ability to execute rapid, decisive responses to crises worldwide.