171018-M-UX416-070 5TH FLEET AREA OF OPERATIONS (Oct. 18, 2017) Sailors deployed aboard the expeditionary sea base USS Lewis B. Puller (ESB 3) fire a .50-caliber machine gun Oct. 18, 2017. Lewis B. Puller, an integral component of Naval Amphibious Force, Task Force 51/5th Marine Expeditionary Brigade, is a newly-commissioned U.S. Navy warship designed to support a broad range of missions in the U.S. 5th Fleet area of operations. (U.S. Marine Corps photo by Cpl. Jessica Y. Lucio/Released)