Athens- No, you may be powerful but our warriors are strong.
Darius- I need your land to expand my empire. This is my land now.
The Battle of Thermopylae was fought between an alliance of Greek city-states, led by King Leonidas of Sparta, and the Persian Empire of Xerxes I over the course of three days
The battle of Salamis was a naval battle fought between an alliance of Greek city-states under Themistocles and the Persian Empire under King Xerxes
The Battle of Marathon took place in 490 BC during the first Persian invasion of Greece. It was fought between the citizens of Athens, aided by Plataea, and a Persian force commanded by Datis and Artaphernes.
During Marathon, The Greeks were able to win because Darius got tired of waiting and retreated and the Greeks attacked. They built a strong army and forced the Persians to retreat to Asia Minor and saved their homeland from invasion.
During Thermopylae, The Greeks were betrayed, and the Persians were able to outflank them. Sending the main army in retreat.
The greeks came home from Salamis with a victory over the navel battle between Greek City-States and the Persian Empire