U.S. Marine Corps Gunnery Sgt. Daryl Lee, center right, a platoon sergeant with the 3rd Assault Amphibian Battalion, welcomes Marine Corps officers and members of the Japan Ground Self-Defense Force before a splash demonstration by AAV-7 assault amphibious vehicles Feb. 16, 2014, at Marine Corps Base Camp Pendleton, Calif., during exercise Iron Fist 2014. Iron Fist is a three-week bilateral training event held annually between the U.S. Marine Corps and the Japan Ground Self-Defense Force designed to increase interoperability between the two services while aiding the Japanese in their continued development of amphibious capabilities.