150402-M-YH418-006: GULF OF ADEN (April 2, 2015) - Sgt. John Chandler, a heavy equipment operator, pins Christopher Williamson, a bulk fuel specialist, with sergeant chevrons aboard the amphibious transport dock ship USS New York (LPD 21), April 2, 2015. Both Marines are with Combat Logistics Battalion 24, 24th Marine Expeditionary Unit. The 24th MEU is embarked on the ships of the Iwo Jima Amphibious Ready Group and deployed to maintain regional security in the U.S. 5th Fleet Area of operations. (U.S. Marine Corps photo by Cpl. Todd F. Michalek/Released)