What was a critical lesson learned about using Native languages in warfare?

The use of Native languages in warfare, particularly as demonstrated by the Code Talkers during World War II, highlighted their value as a highly secure means of communication. This effectiveness stemmed from the fact that these languages were not widely known or understood outside of their respective communities, making it extremely challenging for enemy forces to intercept or decode messages. The use of these languages provided a tactical advantage, allowing for quick and reliable communication in the field without fear of interception.

While difficulty in learning or potential misunderstandings might be relevant considerations in a general context, they do not capture the primary strategic benefit that was unique to the use of Native languages in military operations. Similarly, the notion of languages being outdated for modern warfare does not apply, as the effectiveness of these languages for secure communication was proven during pivotal moments in history.