Final answer:
The importance and secrecy of the Navajo Code during World War II were signified through events such as the recruitment and training of Navajo code talkers and strict security measures. However, the code was not widely known or used by the enemy.
Step-by-step explanation:
One of the events that signified the importance and secrecy of the Navajo Code was the recruitment and training of Navajo code talkers during World War II. These code talkers were crucial in transmitting coded messages between military units, as their language was extremely difficult for enemies to decipher. Another event was the strict security measures taken to protect the code. The code was not written down, and the code talkers had to memorize it. They were also sworn to secrecy and faced severe consequences if they were captured or compromised the code. However, the statement 'The Navajo Code was widely known and used by the enemy during the war' was not an event that signified the importance and secrecy of the Navajo Code because the primary purpose of the code was to create a secure and unbreakable communication system for the military.
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