The Peloponnesian War is presented as a catastrophe rooted in rivalry between Athens and Sparta and magnified by the failures of political judgment. In the essays, it is both an episode in Greek history and a warning: victories against a foreign enemy did not secure concord at home, and the conflict between the leading cities brought Athens to ruin and subjection.

Rivalry After the Persian Wars

The account emphasizes the contrast between the Greeks’ success against the Persian forces and what followed. The peace that came after that victory offered an opportunity to strengthen their union, but Athens and Sparta, buoyed by their victories and renown, became rivals and then enemies. Rather than consolidating their common security, they inflicted on each other far greater harm than they had suffered from Xerxes. Their mutual jealousies, fears, hatreds, and injuries culminated in the Peloponnesian War.

This recollection is used to challenge the expectation that neighboring political communities will naturally remain peaceful when separated. The essays argue that closeness can make states rivals, and that a confederate republic can restrain the jealousies that otherwise lead each to seek advantage at its neighbors’ expense. The war therefore functions not merely as a Greek conflict but as a historical example in a larger case for durable political union.

Pericles and the War’s Origins

A separate account associates the war’s beginning with Pericles and a mixture of personal and public motives. It suggests that he may have acted from private resentment toward the Megarians, sought to avoid prosecution over an alleged connection to the theft of Phidias’s statuary, or tried to escape accusations that state funds had been spent to win popularity. The account leaves open whether one motive or a combination of them drove him, but identifies him as the war’s originating author.

The essay places this episode within a broader argument about how leaders can exploit public authority for private advantage. It also recounts that Pericles attacked, defeated, and destroyed the city of the Samians in response to a courtesan’s resentment, at considerable cost in his countrymen’s blood and treasure. This earlier example reinforces the essay’s warning that the passions of influential individuals can disturb public peace; the Peloponnesian War then stands as the much larger consequence associated with Pericles’ political course.

Outcome and Political Meaning

The war is described as ending in the ruin of the Athenian commonwealth. In the account of the post-Persian period, Athens is also said to have ended in ruin and slavery after the conflict it had begun. These formulations make the outcome more than a reversal of fortune: a leading city’s rivalry and conflict with Sparta destroyed its own political independence.

The essays use this ending to argue that courage and military success cannot compensate for a weak or disunited political order. Their historical lesson is directed toward the American debate over union: the Greek example shows how rival powers, unresolved jealousies, and the failure to reform a common political framework can turn shared security into mutual destruction. The war thus recurs as a caution against supposing that independent neighboring states will preserve peace through goodwill alone.