MARINE CORPS BASE CAMP PENDLETON, Calif. - Soldiers with the Western Army Infantry Regiment, Japan Ground Self Defense Force, conduct an amphibious assault onto red beach and clear a simulated enemy camp during exercise Iron Fist 2018, Feb. 5. Exercise Iron Fist is an annual bilateral training exercise where U.S. and Japanese service members train together and share technique, tactics and procedures to improve their combined operational capabilities. (U.S. Marine Corps photo by Lance Cpl. Robert Alejandre)