A U.S. amphibious assault vehicle approches shore during

A U.S. amphibious assault vehicle approches shore during a training exercise as part of an Iron Fist event at Marine Corps Base Camp Pendleton, Calif., Feb. 5, 2018. Iron Fist is an annual training event where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities and build comradery between countries. (U.S. Marine Corps photo by Cpl. Robert G. Gavaldon)