Marines with the Maritime Raid Force, 11th Marine Expeditionary Unit prepare to enter the well deck aboard the USS San Diego during Amphibious Squadron Marine Expedtionary Unit Integration Training (PMINT) off the coast of San Diego, Calif. April 8, 2014. PMINT is the first at-sea event in the MEU’s predeployment training program at which they have the opportunity to conduct amphibious based operations while embarked on a ship. (U.S. Marine Corps photo by Cpl. Demetrius Morgan/Released)