Their infantry soldiers were armoured, whereas the Persians just had wicker shields.
Their supply line was short, whereas the Persians were supplied by ship from Asia Minor - when the Persian war fleet was crippled at Salamis, they had to send half their army home as they could not be fed during the oncoming winter.
The Persian war ended Persian expansion to the west. Thermopylae was a minor tactical delaying action which failed.
They were armoured and they were holding a narrow pass 100 metres wide at its narrowest.
The invading Persian army.
The Spartan warriors played a crucial role in the Battle of Thermopylae by bravely defending the narrow pass against the Persian army, delaying their advance and allowing other Greek forces to prepare for battle. Their sacrifice and determination became a symbol of courage and resilience in the face of overwhelming odds.
Wicker.
The Battle of Thermopylae took place in the second of the two Persian Wars, also known more recently as the Greco-Persian Wars.
None. The Greek force at Thermopylae comprised about 8,000 from a dozen city states, including Sparta which provided 300 armoured warriors and 2,100 light infantry.
Thermopylai was a battle in the Persian War.
King Xerxes I.
It was the Battle of Thermopylae in the Second Persian War. The Greeks won. Shortly after Thermopylae the Athenian Navy defeated the Persian Navy at Salamis, and in the next year the Persian Army was defeated by a combined Greek Army at Plataea.
The answer is the Persian war.
Five thousand Persian archers.