Answer:
he period of European history and the fall of the roman empire
Explanation:
What injustices are you trying to find out exactly?
b. They reduced air strike losses because American communications were no longer intercepted
The Navajo Code was unbreakable by the Japanese interceptors. This is because it required one to learn the code from the Navajo, which there were no Navajo living in Japan in WWII so they were unable to intercept communications
Let them through the more the merrier.