PACIFIC OCEAN (Feb. 19,2016) -- U.S. Marines and Sailors with the 13th Marine Expeditionary Unit prepare to board U.S. Marine MV-22 Ospreys during training aboard the USS New Orleans, Pacific Ocean, Feb. 19, 2016. More than 4,500 Marines and Sailors with the 13th Marine Expeditionary Unit and Boxer Amphibious Ready Group are transiting the Pacific Ocean en route to the Pacific and Central command areas of responsibility. (U.S. Marine Corps photo by Lance Cpl. Alvin Pujols/RELEASED)