Answer:
2. Italian Alps
Explanation:
They are naturally narrow and dangerous, forcing the invaders to go through the Alps slowly, giving time for Rome to defend itself.
Michel Eyquem de Montaigne, Lord of Montaigne was one of the most significant philosophers of the French Renaissance, known for popularizing the essay as a literary genre. His work is noted for its merging of casual anecdotes and autobiography with intellectual insight.
ImageWikipedia › wiki › Michel_de_Mon...
Michel de Montaigne - Wikipedia
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
