The Native Americans supported the war effort by working in war industries and joined the military in large numbers. More than 25,000 of them actively served in the United States military during the war.
During the Second World War the Marine Corps used the language of the Navajo Indians to transmit coded messages on the battlefield. Especially during the Battle of Iwo Jima, hundreds of messages were transcribed with the Navajo code, without any error, for endless hours.
