What was one effect of the Peloponnesian War? Macedonia invaded Greece.
Sparta allied with Macedonia.
Athens took over Macedonia.
Macedonia defeated the Greek navy.

The correct answer is A. Macedonia invaded Greece.

Explanation:

The Peloponnesian War marked the end of the Golden Age of Greece, a change in styles of warfare, and the fall of Athens, once the strongest city-state in Greece. The balance in power in Greece was shifted when Athens was absorbed into the Spartan Empire. The Peloponnesian War ended in victory for Sparta and its allies, and led directly to the rising naval power of Sparta. However, it marked the demise of Athenian naval and political hegemony throughout the Mediterranean. The destruction from the Peloponnesian War weakened and divided the Greeks for years to come, eventually allowing the Macedonians an opportunity to conquer them in the mid-4th century BCE.

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