I believe you are referring to the Navajo Code Talkers. The Navajos were recruited to use their language to speak in code and sent Morse Code in the Navajo Code. The Japanese could not recognize the language.
only a few spoke English not many
The Navajo "Code Talkers" spoke in their native language and could not be understood by any enemy that were listening to their conversations .
They spoke a language that couldn't be translated
world war 2 pacific heroes
Venona
The Navajo Code Talkers spoke in their native language and by doing so provided important information that could not be deciphered by the Japanese intelligence services .
The code that was never broken by the enemy was based on the language of Navajo. Neither the Japanese, nor the German could break the code words. The code was used by people that fought in the Pacific war during world war 2.
The principal German code in WW2 was known as Enigma.
QUARTERBACK
code talkers
because he did
Poorly