200123-M-AG279-1117 CAMP PENDLETON, Calif. (Jan. 23, 2020) Japan Ground Self-Defense Force soldiers with Amphibious Rapid Deployment Brigade form a column of assault amphibious vehicles during Exercise Iron Fist 2020 on Marine Corps Base Camp Pendleton, California, Jan. 23, 2020. Iron Fist is an annual, bilateral training exercise between U.S. and Japanese forces that builds their combined ability to conduct amphibious and land-based contingency operations. (U.S. Marine Corps photo by Lance Cpl. Thomas Spencer/Released)