160514-M-BE869-123 ATLANTIC OCEAN (May 14, 2016) U.S. Marines and U.S. Sailors with the 22nd Marine Expeditionary Unit (MEU), and USS Wasp (LHD 1), perform mass casualty training aboard the Wasp in order to practice their techniques and procedures. The 22nd MEU and amphibious Squadron Six (PHIBRON-6) are underway for composite training unit exercise. (U.S. Marine Corps photo by Cpl. Ryan G. Coleman/Released)