Most of the Persian defeats in the 50 years of warfare between the Greek city-states and Persia were either sea or sea-land battles, not land battles involving just the army.
The single land battle of Plataia in 469 BCE was won by the Greek forces sticking defeating the inferior unsupported Persian infantry.
There were two sides. An assembled team of Greek states and the Persians. The Greek states were heavily outnumbered, due to the size of the Persian army and the fact that many Greek states didn't send any armies. The Greeks beat the Persians in the naval battle, forcing them to go through the narrow pass guarded by the states' armies. The armies stood at the pass blocking the Persians. The Persians failed to destroy the blocking army. Eventually a local citizen showed the Persians a path through the mountains. The leader of the army King Leonidas decided to send the bulk of the army away and keep about 1100 men to keep blocking the pass. These men were annihilated, but it was a Pyrrihic victory for the Persians, as they lost more men then they killed. The Persians were later defeated by the Greeks a year after the battle
The Persians had to send half their army home as, with their sea supply line unprotected by their defeated fleet, they could not feed them in the oncoming winter. This left the way open for the Greek cities to unite and defeat them in the next spring.
After the western Greek citiy-states led by Sparta had defeated the Persian navy at Salamis, the Persians could not feed their army during the oncoming winter and had to send half of it home. The remaining half, with 40,000 Greek allies, was therefore now about the same size as the southern Greek alliance of city-states. The difference was that the Persians had strong cavalry but unarmoured infantry. The Persian infantry could not stand up to the Greek armoured infantry and relied on their cavalry to harass the Greeks. So the Greeks selected Plataea as the right place where they could fight over broken ground where the Persian cavalry could not get at them. The result was the defeat of the Persian army.
They adopted a superior strategy of first defeating the Persian navy, and cutting off their sea supply line. The Persians had to send half their army home for the winter, and the Greeks united the city-state armies to defeat the depleted Persian army.
Yes the Persians did defeat the 300 Spartans and Greeks, but after, a double spy led the Persians to the wrong straight after destroying Athens. The Greek fleet overwhelemed the Persians, so the Persians retrieted. The Persian bridge that was biult was destroyed and the the Greeks kept part of the bridge as a trophy. With Persia now out of their homeland, the Spartans and Athenians teamed up once more and went to battle with the Persians. The battle of Persia and Sparta/Athens lasted 3 years. The Spartan/Athenian army defeted the Persians!Persia lost against the Spartans/Athenians!
The battle of Marathon 490 BCE.
They defeated the Persians.
By temporarily setting aside their usual fighting amongst themselves, uniting, establishing a plan to first defeat the Persian fleet and then its army, and executing it intelligently and steadfastly.
Granicus
The Persians invaded mainland Greece and faced a combined fleet and army of some Greek city-states, including Sparta. The Persians were defeated at sea and on land.
There were two sides. An assembled team of Greek states and the Persians. The Greek states were heavily outnumbered, due to the size of the Persian army and the fact that many Greek states didn't send any armies. The Greeks beat the Persians in the naval battle, forcing them to go through the narrow pass guarded by the states' armies. The armies stood at the pass blocking the Persians. The Persians failed to destroy the blocking army. Eventually a local citizen showed the Persians a path through the mountains. The leader of the army King Leonidas decided to send the bulk of the army away and keep about 1100 men to keep blocking the pass. These men were annihilated, but it was a Pyrrihic victory for the Persians, as they lost more men then they killed. The Persians were later defeated by the Greeks a year after the battle
The Persians had to send half their army home as, with their sea supply line unprotected by their defeated fleet, they could not feed them in the oncoming winter. This left the way open for the Greek cities to unite and defeat them in the next spring.
After the western Greek citiy-states led by Sparta had defeated the Persian navy at Salamis, the Persians could not feed their army during the oncoming winter and had to send half of it home. The remaining half, with 40,000 Greek allies, was therefore now about the same size as the southern Greek alliance of city-states. The difference was that the Persians had strong cavalry but unarmoured infantry. The Persian infantry could not stand up to the Greek armoured infantry and relied on their cavalry to harass the Greeks. So the Greeks selected Plataea as the right place where they could fight over broken ground where the Persian cavalry could not get at them. The result was the defeat of the Persian army.
A series of battles over ten years before he had the Persian Empire under control. The critical three were Granicus, Issus and Gaugamela.
The blocking force's mission at Thermopylae was to force the Persians to turn the Position. The Greek fleet was waiting to pounce on the Persian fleet, destroy it and so remove its threat to the Greek city-states. The sea battle failed, and with its mission gone, the Greek army forces were withdrawn. The Spartan and Thespian contingents remained blocking the pass to cover the withdrawal and were killed.
They adopted a superior strategy of first defeating the Persian navy, and cutting off their sea supply line. The Persians had to send half their army home for the winter, and the Greeks united the city-state armies to defeat the depleted Persian army.
Yes the Persians did defeat the 300 Spartans and Greeks, but after, a double spy led the Persians to the wrong straight after destroying Athens. The Greek fleet overwhelemed the Persians, so the Persians retrieted. The Persian bridge that was biult was destroyed and the the Greeks kept part of the bridge as a trophy. With Persia now out of their homeland, the Spartans and Athenians teamed up once more and went to battle with the Persians. The battle of Persia and Sparta/Athens lasted 3 years. The Spartan/Athenian army defeted the Persians!Persia lost against the Spartans/Athenians!