In the South Pacific in 1944 and 1945, military battles raged between the United States and Japan. Surrounded by rattling bullets and exploding bombs, a group of Navajo Marines sent secret messages back and forth. They used a code they had created from the Navajo language, a code the enemy was never able to crack. These young men had been recruited from their homes in the American Southwest. They brought with them incredible physical stamina and a language that had never been written down. Learn more about the Navajo code talkers-brave, creative heroes who used their unbreakable code to help the Allies win the war.