U.S. Navy Lt. Cmdr. Song Hwang, chaplain for the 13th

U.S. Navy Lt. Cmdr. Song Hwang, chaplain for the 13th Marine Expeditionary Unit, left, shakes hands with a Japanese Ground Self-Defense Force soldier following the opening ceremony for Exercise Iron Fist 2017, aboard Marine Corps Base Camp Pendleton, California, Feb. 6, 2017. Iron Fist is an annual, bilateral training exercise where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities. (U.S. Marine Corps photo by Lance Cpl. Tyler Byther/Released)