Marines with Reconnaissance Platoon, Battalion Landing Team 3/5, 15th Marine Expeditionary Unit, familiarize themselves with the water during a scuba training exercise, Feb. 24. The 15th MEU is deployed as part of the Peleliu Amphibious Ready Group as a U.S. Central Command theater reserve force, providing support for maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Marine Corps photo by Cpl. John Robbart III/Released)