Final answer:
The Greeks defeated the Persians in the Battle of Salamis during the Persian Wars.
Step-by-step explanation:
The naval battle in which the Greeks defeated the Persians was the Battle of Salamis. This battle took place in 480 BCE during the Persian Wars. The Greek naval forces, led by Themistocles, utilized their superior naval tactics and the narrow straits of Salamis to outmaneuver and destroy a significant portion of the Persian fleet.
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