Persia had the money to bankroll the Spartan-led Peloponnesian League to build and man a fleet which could compete with the hitherto dominant Athenian fleet.
Persian Empire
Sparta ***** The persian empire.
The Persian Empire .
Persia.The Persian Empire.
It was part of a coalition led by Sparta which repelled an invasion by the Persian Empire.
The Persian Empire versus a coalition of Greek city-states, at first led by Sparta, then by Athens.
The Persian Empire and an alliance of Greek city-states led first by Sparta and then Athens.
Athens did, financed by the taxes it levied on the cities of its empire. Sparta gained one when the Persian king gave it the money to build and man it.
The Persian Empire versus coalitions of Greek city-states led first by Sparta, then by Athens.
Two leagues - one led by Athens, the other led by Sparta.
Athens and its empire versus the Peloponnesian League led by Sparta.
The Persian Empire versus a coalition of Greek city-states led first by Sparta then Athens, 499-449 BCE.