Because, the Persians felt that their army could outnumber Greece, also because they might not have known what they were getting into when they attacked the Greek city-states. Hope that helped :D
Answer:
Because the U.S. had told them they would be free, but the U.S. stuck around around instead
Explanation:
It brought people togethor and helped people from other countries get goods.
Explanation:
B. For his ability to play the trumpet and his subtle sense of improvisation.