A U.S. Marine Corps AAV-7A1 assault amphibious vehicle performs an amphibious landing at Marine Corps Base Camp Pendleton, Calif., Feb. 19, 2014, as part of 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.