Development of a Navajo Code Used in the Pacific

This image depicts page 1 of a September 14, 1942 letter - from Philip Johnston to the U.S. Marine Corps Commandant - requesting permission to join the Marines to serve as an instructor of Navajo Code Talkers (and to otherwise work in the program). 
Earlier - in February of 1942 - Johnston had suggested that a Navajo Code be developed to use against the Japanese in the Pacific theater.  Stunned by an effective demonstration, of how such a code would work, Marine Corps officials agreed.  
After it was implemented, and used in the Pacific, the Navajo code was never broken. 

Media Credits

Image of letter online, courtesy Northern Arizona University, Cline Library - Colorado Plateau Digital Archives - Special Collections, image 43288a


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