200124-M-SK635-1051 CAMP PENDLETON, Calif. (Jan. 24, 2020) U.S. Marines with 3rd Assault Amphibian Battalion, 1st Marine Division, stage assault amphibious vehicles before simulating an amphibious landing during Exercise Iron Fist 2020 at Marine Corps Base Camp Pendleton, California, Jan. 24, 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 Cpl. Cutler Brice/Released)