Members of the Japan Ground Self-Defense Force keep an eye out for attackers during a platoon day raid on Jan. 29, 2015, as part of Exercise Iron Fist 2015. Iron Fist 2015 is the 10th anniversary of a bilateral training exercise between the U.S. Marine Corps and the Japan Ground Self-Defense Force, meant to strengthen interoperability between the two militaries. (U.S. Marine Corps photo by Sgt. Paris Capers/Released)