170912-M-CK339-009 U.S. 5TH FLEET AREA OF OPERATIONS (Sept. 12, 2017) Marines assigned to the 15th Marine Expeditionary Unit (15th MEU) separate supplies during a replenishment-at-sea aboard USS San Diego (LPD 22). The 15th MEU and America Amphibious Ready Group are operating in the U.S. 5th Fleet area of operations in support of maritime security operations to reassure allies and partners, and preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Marine Corps photo by Lance Cpl. Jeremy Laboy/Released)