Sergeant First Class Green was a member of Company L, 3rd Battalion, 38th Infantry Regiment, 2nd Infantry Division. He was Killed in Action while fighting the enemy in North Korea on 12 January 1952. His remains were not recovered. His name is inscribed on the Courts of the Missing at the Honolulu Memorial.

For his leadership and valor, Sergeant First Class Green was awarded the Silver Star Medal, the Bronze Star Medal, the Purple Heart, the Combat Infantryman Badge, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.