The Greco-Persian Wars were two conflicts that occurred between 490 and 479 BCE and pitted the Persian Empire against the Greek city-states. The conflict began after Athens and Eretria gave assistance to the Ionians in their rebellion against Persia and its ruler, Darius. (got the answer from google hehe)
The navigation act required them to trade
Answer:
Sir Stafford Cripps hope it helps all the best
The answer for this question is Charlemagne