A safety swimmer aboard USS New Orleans sits on the ship’s stern gate and watches over Marines and sailors during recreational swimming in the ocean here March 30, 2012. The Marines are with the 11th Marine Expeditionary Unit, which is deployed as part of the Makin Island Amphibious Ready Group, a U.S. Central Command theater reserve force. The group is providing support for maritime security operations and theater security cooperation efforts in the U.S. Navy’s 5th Fleet area of responsibility. (U.S. Marine Corps photo by Cpl. Ryan Carpenter)

Marines from the 31st Marine Expeditionary Unit (31st MEU) recover at the stern gate of the forward-deployed amphibious dock landing ship USS Tortuga (LSD 46) after a night exercise in combat rubber raiding craft, March 1, 2012. Tortuga, part of The Essex Amphibious Readiness Group, is underway on a scheduled deployment in the U.S. 7th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class Eric Crosby)

U.S. Navy Petty Officer 2nd Class Maxwell McGill, a 25-year-old corpsman with the 3rd Battalion, 3rd Marine Regiment battalion aid station, and native of Englewood, Fla., checks the compass reading of Afghan National Army Pvt. Faraidoon, a medic assigned to 2nd Kandak, 1st Brigade, 215th Corps, while testing his navigation skills during the final examination of an eight-week ANA medic course here, March 9, 2012. Among the variety of medic courses conducted in Helmand province in the past, this course led by corpsmen with “America’s Battalion”€™ was the first for ANA soldiers in Garmsir district.The curriculum for the course was designed to be “€œhands-on”€ in response to low literacy and proficiency rates among ANA medics, said Navy Lt. Sean Stuart, the 3/3 battalion surgeon, and a native of Atlanta. (U.S. Marine Corps photo by Cpl. Reece Lodder)

An AV-8B Harrier with Marine Attack Squadron 311, part of the Air Combat Element of the 31st Marine Expeditionary Unit, lands on the USS Essex (LHD 2), March 6, 2012. The pilots of VMA 311 were conducting night carrier landing qualifications in preparation for the 31st MEU’s Certification Exercise. The 31st MEU is the only continuously forward-deployed MEU and remains the nation’s force in readiness in the Asia-Pacific region. (U.S. Marine Corps photo by Cpl. Garry J. Welch)

A candidate with Charlie Company, Officer Candidate School, maneuvers across a horizontal rope during The Montford Point Challenge at Marine Corps Base Quantico, Va., March 24, 2012. This is the second company to take on the challenge, which was created to honor the sacrifice and heroism of the first African American Marines who trained at Montford Point, N.C., from 1942 to 1949. (U.S. Marine Corps photo by Lance Cpl. Emmanuel Ramos)

An MV-22 Osprey maneuvers on the flight deck of the aircraft carrier USS George H.W. Bush (CVN 77) during test operations March 20, 2012. George H.W. Bush is in the Atlantic Ocean conducting carrier qualifications. This was the first time an MV-22 made a landing on an aircraft carrier. (U.S. Marine Corps photo by Petty Officer 3rd Class Brian Brooks)