in "The Unbreakable Code" why did John's grandfather speak sternly when talking about the Navajo language

He reassures John that the Navajo land, language and culture will always be with him because it's part of the unbreakable code. ... During World War II, John's grandfather left the Indian residential school he was in to join the military and become a Navajo code talker.

Explanation:

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Lanuel Lanuel · Answer 2 · 2022-04-26T13:34:12+02:00

John's grandfather spoke sternly when talking about the Navajo language because it had helped his country win World War II (WWII).

What is the Navajo language?

During World War II (WWII), Native American soldiers transmitted (sent) all sensitive military messages over open radio waves while using their native languages as a means of secret communication.

Furthermore, these military men were commonly referred to as the Navajo code talkers and they were victorious in World War II (WWII) as a result of this secret form of communication.

In conclusion, John's grandfather spoke sternly in "The Unbreakable Code" when talking about the Navajo language because it had helped his country win World War II (WWII).

Read more on Navajo language here: https://brainly.com/question/24209993