180125-M-AR450-1407 U.S. 5TH FLEET AREA OF OPERATIONS (Jan. 25, 2018) The French amphibious assault ship LHD Tonnerre (L9014) patrols the open seas. Tonnerre, with embarked U.S. Marines and U.S. Navy Sailors from Naval Amphibious Force, Task Force 51, 5th Marine Expeditionary Brigade, is conducting maritime security operations within the U.S. 5th Fleet area of operations to ensure regional stability, freedom of navigation and the free flow of commerce. (U.S. Marine Corps photo by Sgt. Wesley Timm/Released)