How did the Navajo code talkers help the Allied forces win the war in the Pacific

In 1942, 29 Navajo men joined the U.S. Marines and developed an unbreakable code that would be used across the Pacific during World War II. They were the Navajo Code Talkers. The Code Talkers conveyed messages by telephone and radio in their native language, a code that was never broken by the Japanese.

Explanation:

b. parliament was weaker than the monarchy.

i also think he is correct. i believe they came to washington to protest their rights.