Several hundred Navajo tribe members served as code talkers for the United States during World War II, using a military communications code based on the Navajo language. They sent messages back and forth from the front lines of fighting, relaying crucial information during pivotal battles like Iwo Jima.
Military authorities chose Navajo as a code language because it was almost impossible for a non-Navajo to learn and had no written form. It was the only code the Japanese never managed to crack.
The Navajo code talkers participated in every assault the U.S. Marines carried out in the Pacific between 1942 and 1945.
Story: CNN | Photo: CNN