Carthage

Carthage is presented in the Federalist essays as both a powerful commercial republic and a warning against assuming that republican institutions or commercial interests will reliably restrain aggression. Its destruction by Rome and the later decline of its senate’s authority make it a recurring example in arguments about war, political stability, and the need for durable constitutional checks.

Commercial Republic and War

Carthage is grouped with Sparta, Athens, and Rome as a republic that fought as often as neighboring monarchies. The comparison challenges the belief that popular government is inherently more peaceful: republics, like monarchies, are governed by people subject to ambition, rivalry, and immediate interests. Carthage’s commercial character sharpens the point. Commerce had not removed the motives for war; in this example, the commercial republic itself initiated the conflict that ended in its destruction.

The account of that conflict gives the warning a concrete sequence. Hannibal carried Carthaginian arms into the heart of Italy and to the gates of Rome. Scipio then defeated him in Carthaginian territory and conquered the commonwealth. The reversal—from a campaign advanced to Rome’s gates to defeat on Carthage’s own ground—makes the republic an example not of security through commerce, but of how offensive ambition may culminate in national ruin.

Carthage also appears in a broader discussion of why nations make war. Commercial competition is one recurring source of hostility, but it is not the only one: the essays distinguish rivalry over power and dominion, competition for equality and safety, and private passions or interests among influential individuals. The Carthaginian case contributes to the argument that economic activity can alter the objects of conflict without extinguishing the appetite for it.

A Senate as an Anchor Against Instability

In a separate argument about the institutions needed to preserve a republic, Carthage is cited alongside Sparta and Rome as one of the few ancient states considered long-lived. The precise constitution of its senate is less clearly known than those of the other examples. Still, the essay treats it as certain that the senate possessed some quality that made it an anchor against popular fluctuations. A smaller council drawn from the senate reportedly filled its own vacancies and held office for life.

The comparison is carefully qualified. These ancient states are said to be unsuitable for direct imitation in America and at odds with the character of American government. Their relevance is instead evidentiary: when set against the short and turbulent histories of other ancient republics, they suggest the importance of an institution able to combine stability with liberty. Carthage thus represents an institutional function, not a model to reproduce wholesale.

The Senate’s Loss of Power

The essays also use Carthage to show that a senate’s stabilizing role does not guarantee that it will retain its original authority. In discussing the balance between senatorial and popular power, the account notes that Sparta’s annually elected Ephors steadily gained authority over its senate, while Rome’s Tribunes prevailed in repeated contests with theirs. These comparisons set up the Carthaginian example: according to Polybius, by the beginning of the Second Punic War, its senate had lost almost all of its original share of power.

That loss is presented as evidence that a council cannot be assumed to dominate a republic merely because it was once powerful or was intended to provide stability. The argument turns from ancient precedent to the proposed American arrangement: the federal Senate, the essays contend, would not be able to transform itself gradually into an independent aristocracy, and the House of Representatives, supported by the people, could restore the Constitution if such a change occurred. Carthage’s history supplies part of the caution behind that claim, showing why institutional balance must be considered alongside the intended role of a senate.

Carthage in the Federalist Comparisons

Across these arguments, Carthage occupies more than one place in the historical record assembled by the essays. It is a commercial republic that initiated a disastrous war; a republic whose defeat exposes the failure of commerce to guarantee peace; and a polity whose senate is recalled both as a possible restraint on popular instability and as a body that eventually lost most of its original power. The differences among these examples matter: the essays draw on Carthage not as a single, unchanging constitutional lesson, but as evidence for distinct claims about international conflict and the internal balance of republican government.

The broader political reasoning distinguishes historical fact from institutional prescription. Carthage’s example helps challenge confidence that republican virtue will by itself prevent war or preserve a constitution. It does not, on its own, establish that an ancient senate could simply be transferred to the American system. Instead, the essays use its contrasting associations to argue that republican liberty requires institutions capable of containing ambition and sustaining stability, while remaining answerable to the people.