The main role for The Code Talkers was to create codes that the japanese couldn't crack. “The group developed the code that would perplex Japanese military cryptologists. The code would also play a major role in helping the Allies win the war.” The 29 Code Talkers played a major role in winning World War II.
The Code Talkers made it very difficult to uncrack the codes that were sent to each other. The code was based on the language Navajo. The Code Talkers created an alphabet and 200 terms of codes.