First they sent emissaries around the city-states with god, bribing cites to join with them. Against the hold-outs they advanced by land, with a flanking fleet which threatened the southern Greek city-states, so the cities kept their armies at home defending their walls and so would be unable to unite into a string force, allowing the Persians to take over the cities one by one.
They did not want to attack Thermopylai. They wanted to go through thr pass of Thermopylai from northern to southern Greece which was blocked by a small Greek force.
The Battle of Marathon in 490 BCE was where Athens fought off the Persian King Darius. The Persians kept invading Greece for personal gain, and eventually Greece had enough and attacked the Persians back.
Asia Minor
The Persians did not have a war with Sparta. They invaded mainland Greece to put an end to their interference in supporting uprisings of Greek cities in Persian-ruled Asia. They were repelled by a coalition of city-states from southern Greece, of which Sparta was but one.
No, Greece was not a colony to another country in recent history. However, in ancient history, Greece was subjected to colonization by various ancient powers such as the Persians, Romans, and Ottomans.
the plan was to get as much men as the could get and just come together and go against the greeks.
480 BCE.
Aegean Sea
From Gallipoli through Thrace, Macedonia and Thessaly into mainland Greece.
A decade.
They lost.
Leonidas was king of Sparta when xerxes led the Persians to attack Greece, leonidas led the famous 300 spartens to meet the Persians and bought the rest of Greece enough time to asemble an army capable of defeating xerxes.
Revolution in Greece led by Thebes. He sold their people into slavery as a warning to the other city-states.
They did not want to attack Thermopylai. They wanted to go through thr pass of Thermopylai from northern to southern Greece which was blocked by a small Greek force.
the plan was to get as much men as the could get and just come together and go against the greeks.
The Persians did not control Greece. They had scores of Greek city-states in Asia Minor within their empire.
Ferociously.