Service members from the Air Force, Army and Marine Corps participate in sustainment training at Grand Bara, Djibouti, Jan. 5, 2017. During the exercise Air Force joint terminal attack controllers, along with Soldiers from the 101st Infantry Battalion and Marines from the 11th Marine Expeditionary Unit conducted training utilizing MV-22 Ospreys and F-16 Fighting Falcons. (U.S. Air Force photo/Tech. Sgt. Joshua J. Garcia)