It disappeared. Athens, at the forefront of introduction of democracy, rverted to oligarch in order to conduct the extended war effort and continued for another 20 years until it reemerged in the final stage of the 50 year war led by Ephialtes.
There was no democracy in Greece at the time of the Persian War.
It emerged in Athens when the city diverted the war funds of the anti-Persian alliance, which it continued to mulct from its allies after peace was made with Persia.
These funds were diverted to supporting Athens' own lifestyle, providing the resources to include all its people in employment, government and a degree of widespread prosperity not possible in such poor economies without the artificial largesse from the stolen funds.
Athens then encouraged other allied and subject cities towards democratic politics to complement its own.
Pericles
The Persian Empire .
Argos.
It was the Ionian revolt against Persian rule that expanded into the Persian War 449-449 BCE.
Persia!!!!!
Darius the Great and Xerxes the Great.
Athens did not remain a democracy. The war required strong leadership, and the oligarchs took over again to organise and lead the war machine. They held on after the Persian invasion had been repelled and the struggle for the eastern Mediterranean continued. It was not until 20 year later that Ephialtes led a counter move and restored democracy.
The Battle of the Bulge.
The Persian Empire and a couple of hundred of the city-states of the Greek world.
Artaxerxes I.
Its Leonidas, king of Sparta during the Persian wars.
Self defence.