PACIFIC OCEAN (Nov. 13, 2015) Lt. Cmdr. Frederic Giauque, left, and Hospital Corpsman 2nd Class Kazmin Stan, right, perform a root canal on Mass Communication Specialist 3rd Class Irwinphillip Sampaga aboard the Wasp-class amphibious assault ship USS Essex (LHD 2). Essex is the flagship of the Essex Amphibious Group and, with the embarked 15th Marine Expeditionary Unit (15th MEU), is currently operating in the U.S. 7th Fleet area of operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Liam Kennedy/Released)