U.S. Marines with 15th Marine Expeditionary Unit and

U.S. Marines with 15th Marine Expeditionary Unit and Japan Ground Self-Defense Force soldiers with Amphibious Rapid Deployment Brigade prepare to board MV-22B Ospreys with Marine Medium Tiltrotor Squadron (VMM) 764 during Exercise Iron Fist 2020 on San Clemente Island, California, Jan. 22. 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)