U.S. Marines with the 1st Reconnaissance Battalion, 1st Marine Division prepare to exit a building and move toward their next objective while conducting raid training during exercise Iron Fist 2014 at Marine Corps Base Camp Pendleton, Calif., Feb. 7, 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.