Final answer:
Sparta turned to Persia for help during the Second Peloponnesian War.
Step-by-step explanation:
Sparta turned to Persia for help during the Second Peloponnesian War. After suffering numerous defeats at the hands of Athens, Sparta sought assistance from the Persian Empire to strengthen their position in the war. This alliance allowed Sparta to gain financial support and naval assistance from Persia, which ultimately played a significant role in their victory over Athens.
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