171215-N-FD185-3551 PORT OF DJIBOUTI (Dec. 15, 2017) Engineman 2nd Class David Castro, assigned to Coastal Riverine Squadron (CRS) 10, refuels a security patrol boat during a security escort in the Port of Djibouti. CRS-10 is forward-deployed to the U.S. 6th Fleet area of operations and conducts joint and naval operations, often in concert with allied and interagency partners, in order to advance U.S. national interests and security and stability in Europe and Africa. (U.S. Navy photo by Engineman 2nd Class Carlos A. Monsalve/Released)