Why was the Peloponnesian War fought? a Due to a series of alliances, when Athens and Corinth fought over Corcyra, other Greek city-states joined the fight leading to the Peloponnesian War. b When Alexander the Great invaded Egypt, the pharaohs aligned with the Kingdom of Kush to repel the attack and the Peloponnesian War was the result. c When a member of the Han family assassinated the last emperor of the Qin Dynasty, the resulting battle led to the Peloponnesian War. d The Persian Empire was trying to expand into the Greek mainland and the Peloponnesian War was fought to keep Greece Greek. WILL GIVE BRAINLIEST