Apache...that's why the enemy never could figure out the audio messages sent between our Apache speaking radiomen.
Are you sure you're not talking about the Navajo Code Talkers.![]()
(My bold)
There were Comanche code talkers in WWII. & other languages were also used, in WWI & in WWII. See Code talker - Wikipedia, the free encyclopedia
The Navajo code talkers are the best known in the US.
There are always surprises in the World.