U.S. Marine Corps Lt. Col. John Gianopoulos, the commanding

U.S. Marine Corps Lt. Col. John Gianopoulos, the commanding officer of 5th Marine Regiment, 1st Marine Division, right, presents a certificate of recognition to Retired U.S. Marine Corps Chief Warrant Officer 4 Hershel “Woody” Williams, the last surviving Medal of Honor recipient of the battle of Iwo Jima, left, at 5th Marine Regiment Vietnam War Memorial at Marine Corps Base Camp Pendleton, Calif., May 29, 2018. Williams visited the newly unveiled memorial to honor the Marines and sailors who gave their lives guarding our great nation. (U.S. Marine Corps photo by Cpl. F. Cordoba)