180117-N-FH210-002 U.S. 5TH FLEET AREA OF OPERATIONS (Jan. 17, 2018) Sailors assigned to the expeditionary mobile sea base USS Lewis B. Puller (ESB-3) prepare for a vertical replenishment while. The expeditionary mobile sea base platform supports Naval Amphibious Force, Task Force 51, 5th Marine Expeditionary Brigade’s diverse missions that include crisis response, airborne mine countermeasures, counter-piracy operations, maritime security operations and humanitarian aid/disaster relief missions while enabling TF 51/5 to extend its expeditionary presence in the world’s most volatile regions. (U.S. Navy photo by Chief Petty Officer Brandon Cummings/Released)