How did the Greeks finally defeat the Persians

Over 50 years thet increasingly repelled the Persians from Greekcity-states, which eventually convinced the Persians that their aimof imposing peace on the cities was unachievable, so they made anagreement to stay away from them, and left them to get on withtheir customary inter-city warfare.
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After their defeat in the Persian wars, the Persian empire’sinterference in Greece was completely ended with the defeat of thePersians at the hands of Alexander the Great and the destruction ofthe Persian empire.