The unbreakable code [Image 1 of 9]
BARSTOW, CA, UNITED STATES
A platoon of Navajo Marines pose for a group photo upon graduating recruit training, in San Diego, 1942. The Navajo Marines turned their language into an unbreakable code during World War II.
||BARSTOW, CA, US
This work, The unbreakable code [Image 1 of 9], by Cpl Samuel Ranney, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.