A C-17 Globemaster III flies over the Nevada Test and Training Range during a joint forcible entry exercise, Dec. 10, 2016. Joint-service exercises like JFEX have long been integral to maintaining cohesiveness between the Air Force and the Army in an era where a new conflict can spark at any moment around the world. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum)