GULF OF ADEN (June 30, 2015) Machinist Mate 2nd Class Jose Mendez and Machinist Mate 3rd Class Nicholas Navaeoff conduct boiler light off procedures in the aft main machinery room of Wasp-class amphibious assault ship USS Essex (LHD 2). The Essex Amphibious Ready Group and the embarked 15th Marine Expeditionary Unit (15th MEU), are deployed in support of maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 3rd Class Christopher A. Veloicaza/ Released)