180910-M-FD425-470 U.S. 5TH FLEET AREA OF OPERATIONS (Oct. 10, 2018) U.S. Marines with Deployable Joint Command and Control System conduct rehearsals with portable command and control systems. Known as "DJC2," the unit supports Naval Amphibious Force, Task Force 51/5th Marine Expeditionary Brigade by providing services necessary to establish a self-contained, self-powered, network-enabled operations center anywhere in the U.S. Central Command area of operations. (U.S. Marine Corps photo by Staff Sgt. Donnell Bryant/Released)