The defeat of the Athenians in Sicily had a profound impact on the Peloponnesian War. The war dragged on for another 10 years, but the Athenians could not recover from the defeat. Finally in 404 BC, Athens surrendered to Sparta, and the Peloponnesian War came to an end. The Athenians' invasion of Sicily is a cautionary tale about the dangers of overconfidence and underestimating your enemies. It is also a reminder that even the most powerful empires can be defeated.