As the Persians are packing their ships to head to Athen's after three days of waiting for the Greeks to come, the Greeks get ready to go and attack them while they are off guard.
Battle of Thermopylae
After the Persians lost at Marathon, King Xerxes brings 200,000 soldiers to invade Greece to exact his revenge. As the Greeks come together to make a larger army, Themistocles creates a battle plan in the naval force.
Battle of Salamis
King Leonidas of Sparta controlled a military force of 7,000 soldiers at the Battle of Thermopylae. The Spartans were trying to defeat the Persians by cutting off their army's supplies and from reaching Athen's.
Battle of Plataea
Because of a traitor that revealed where the Spartans were located, the Persians were able to beat the last 300 Spartans and win The Battle of Thermopylae.
I'll show you where the Spartans are
Themistocles created a plan to lure the Persians into the strait of Salamis. Because the Persian ships were too big in the narrow space, the Athenians easily sank their ships and won the Battle of Salamis.
Keep going, men! We're so close!
For the final battle, the Greek city-states all come to make a great army, both sides with over 100,000 soldiers. The Greeks ended up defeating the Persians and won the Battle of Platea. After the defeat, the Persian empire starts to decline.