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They first defeated the Persian fleet at Salamis which removed the Persian amphibious threat to their cities and allowed them to send out the armies being held at home to defend them. It also meant that Persia could not feed its army without protection of its supply fleet, and it had to send half it's army home.
The combined armies then defeated the army of Persia and it's Greek allies at Plataia, and simultaneously defeated the rump of the Persian fleet at Mycale.
What else can I help you with?
How did the Greeks overcome the Persian invasion of 490 B.C.?
bykilling them
Why did Persian conquer Greece?
Persia did not conquer Greece. Persia attempted to conquer Greece but the invasion was repelled. Earlier, Greeks had fought against Persia in the Ionian Revolt, and the Persian invasion was intended as retribution for the violation of Persian temples.
What did Persia take from the Greeks?
what did persia take away from the greeks
What was the ratio of Persia-to-Greeks?
Persia was a country, Greeks are a nationality. There is no meaningful ratio.
Who were Greeks main rivals?
It was the persia
What is another name for Persia?
another name for persia is greeks.
What caused Darius to first become angry with the Greeks?
Many Greeks stated that Greece was more advanced than Persia.
Who wanted to conquer Persia but died first?
Philip II of Macedon planned an invasion to conquer Persia but was murdered shortly before the invasion began.
How did the greeks meet the threat of invasion by Persia?
By the southern city-states banding together, establishing a sound strategy, providing coherent leadership and getting together effective navies and land forces.
Was King Darius against the Greeks or the Persians?
against the Greeks because he was the king of Persia
Who won the First Persian invasion of Greece?
Persia
When did Persia attack the Greeks mainland?
480 BCE.
