When the persians arrived in Marathon they expected the athenians to be there but they weren't there. they waited for 3 days and started leaving then the athenians jumped out and won.
Battle at Thermopylae
When King Xerxes found out they lost he was angry.
Battle of Salamis
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The Spartans decided to cut off the Persians supplies block them from getting to Athens.
Battle of Plataea
A traitor gave away the Spartans' position to the Persians and lead them down a trail to attack them by surprise. The persians won.
The Athenians made a plan to attack Persia's ships. Basically they lured the persians into the strait of Salamis where only the greeks could move because the greek ships were smaller and the persian ships were bigger. They sank most of their ships and won.
The Greeks came back with more soldiers to form an even stronger army and crushed the Persians. After that the Greek city-states were free and the persian emp