Interstate Conflict
Federalist PapersInterstate Conflict names the prospect that disunion would turn the United States’ states into rival sovereignties, exposed to recurring disputes and, ultimately, violence. In the essays, the danger is not an abstract fear of discord: it is built from identifiable contests over western lands, commercial advantage, shared debts, and private contracts. The argument’s force lies in its causal sequence. When common rules cannot reliably settle disputes or secure common contributions, what one state regards as its interest may look to another like injury, and argument can give way to retaliation.
Causes of Conflict
Hamilton begins by distinguishing the threat of conflict among the states from the foreign dangers discussed in earlier papers. A wholly disunited country, or one split into partial confederacies, would not be immune to the motives that have repeatedly set neighboring nations against one another. The pursuit of power and pre-eminence, fear of another power’s ascendancy, commercial rivalry, and the private ambitions or interests of influential people could all press on the relations between political communities. Public justifications, he warns, might conceal private advantage.
Territory supplies the first concrete case. The United States contained an extensive tract of unsettled land, while several states held disputed claims to western territory. During the Revolution, states whose colonial boundaries included ungranted crown lands claimed ownership; others argued that the rights of the British Crown had passed to the Union, particularly over western lands formerly under British jurisdiction. Congress had encouraged cessions to the United States for the common benefit, and continued union offered a prospect of settling the controversy amicably. Dissolution could undo that compromise: states that had ceded land might seek to reclaim it, while others would demand a share based on joint effort and representation. Even agreement that the land was common would leave the states fighting over how to divide it.
The dispute involving New York and the district of Vermont offers a further warning about the political motives that could sharpen territorial claims. Hamilton recalls opposition from both interested and ostensibly disinterested states, including New Hampshire, Massachusetts, and Connecticut, and describes New Jersey and Rhode Island as supportive of Vermont’s independence. Maryland joined that view before becoming alarmed by the prospect of a connection between Canada and Vermont. In Hamilton’s account, jealousy of New York’s future power and the land grants held by influential people in neighboring states helped shape the contest. The example shows how a dispute over rights could become entangled with calculations of relative power and private interest.
Trade, Debt, and Legal Retaliation
Commercial policy presents another route from rivalry to conflict. If separate states or confederacies pursued distinct policies, they could impose preferences and exclusions that disadvantaged their neighbors. A spirit of enterprise would encourage traders to evade regulations designed to reserve advantages for local citizens; attempts to stop such evasion could produce outrages, reprisals, and eventually war. Practices that people had grown accustomed to judging by a shared standard of equal privileges could come to appear as injuries, even when they were simply the acts of independent governments pursuing separate interests.
Hamilton makes this risk tangible through the geographic relationship among New York, Connecticut, and New Jersey. New York would need duties on imports to raise revenue, and residents of the neighboring states would pay much of those duties as consumers of goods entering New York. New York would have little reason to surrender that revenue or a practical way to distinguish its own customers from its neighbors. Connecticut and New Jersey, in turn, might refuse to remain tributary to a state whose metropolis benefited from their commerce. The example links fiscal necessity to unequal commercial burdens, and unequal burdens to the possibility of confrontation.
The Union’s public debt could become a second financial fault line. Separate states would have to settle both how to apportion the debt and how to extinguish it over time. States differed in their willingness to pay domestic creditors, while states with many public creditors would press for effective provision. Delay by one group could provoke resentment in another; foreign powers would also demand payment. Even an agreed formula might prove to burden some states more heavily than others, encouraging them to seek relief and giving other states reason to reject a revision that increased their own share.
Nor would a fair formula guarantee compliance. States might fail to pay because they lacked resources, managed their finances badly, faced disruptions in government, or preferred immediate local needs to obligations inherited from a past emergency. The resulting arrears would invite complaint and recrimination. Hamilton emphasizes the special difficulty of requiring contributions to a common purpose when the benefits do not appear equal and immediate to all participants: the question of who should pay could itself disturb relations among the states.
Private contracts supply a further legal cause of hostility. A state law violating contracts could injure the citizens of another state and be treated as an aggression against that state’s interests. Hamilton points to Connecticut’s disposition to retaliate after Rhode Island’s legislature enacted measures he condemns. Without additional checks, similar disputes could move beyond legislative retaliation to armed conflict. Here the boundary between domestic law and interstate peace becomes precarious: a state’s treatment of its own citizens may provoke another state to claim a right to respond.
How Disunion Weakens Peace
Hamilton presents these individual disputes as consequences of a broader institutional condition. If the Union broke apart, or survived only through a weak league, the states would undergo the changing relations of peace and war, friendship and enmity, familiar among neighboring nations without a common government. Conflicting alliances with foreign powers could deepen the danger. Divided states might be drawn into European political rivalries and wars, while outside powers could exploit their disagreements. The threat of disunion therefore extends beyond local disputes: it could make the parts vulnerable to manipulation by powers that opposed them all.
The Confederation’s practical weakness is central to this prediction. Under its system, thirteen separate sovereign wills had to concur for important Union measures to be fully executed. States could assess proposed action through the lens of their immediate interests and local convenience, without access to the national reasons on which it had been based. Congress’s measures consequently remained unenforced; state defaults accumulated until the machinery of national government was nearly brought to a standstill. As some states withheld support, others could justify doing less by pointing to their neighbors’ noncompliance. Immediate self-interest thus spread through imitation, weakening the common commitments that might have prevented disputes from escalating.
Constitutional Response and Significance
Interstate Conflict is both a prediction about disunion and a reason to examine whether the existing Confederation can preserve the Union. The essays describe national humiliation in concrete terms: obligations were violated, public debts lacked satisfactory provision, foreign powers retained posts that should have been surrendered, the United States could not adequately respond, Spain excluded Americans from navigation of the Mississippi, and public credit and commerce had deteriorated. These failures reinforce the argument that a government dependent on state administrations for execution could not reliably uphold common commitments or command respect abroad.
The constitutional case is presented against that background, but not as a claim that a proposed design should be accepted without scrutiny. James Madison calls for a fair examination of the work of the convention, comparing its parts and calculating their probable effects; he also recognizes that opponents and supporters may approach the plan with predispositions. He argues that the errors in the plan may reflect a lack of prior experience with a complex subject rather than a lack of care, and that some defects may become visible only through actual trial. The argument therefore treats constitutional change as a response to demonstrated institutional shortcomings, while acknowledging uncertainty about a new system.
Madison’s account of the convention grounds that change in the crisis and in popular authority. The convention’s powers, he emphasizes, were advisory and recommendatory: the proposed Constitution would have no force without the approval of those to whom it was addressed. He also describes earlier steps beyond narrow formal authorization, including Virginia’s proposal for partial amendment and the recommendation made by a few delegates meeting at Annapolis, which twelve of thirteen states supported. In his argument, extraordinary institutional proposals could serve public safety when the people’s right to alter government could not be exercised through universal, simultaneous action.
The essays also connect effective government with protection against concentrated power. Madison argues that each department needs constitutional means and personal motives to resist encroachments by the others, while dependence on the people remains the primary control. His defense of checks and balances matters to the interstate-conflict argument because the proposed capacity to govern is paired with arrangements intended to oblige government to control itself. The point is not simply to replace weak common action with unchecked authority, but to make public power effective while dividing and supervising it.
The danger of conflict also depends on whether officials can be held accountable for decisions. Madison objects that a plural executive could obscure responsibility: amid mutual accusations, the public might not know who was answerable for a harmful measure. He contrasts that obscurity with an appointment process in which the President’s nomination and the Senate’s judgment would be publicly distinguishable. A bad nomination would be attributable to the President; rejection of a good one would be attributable to the Senate; approval of a bad appointment would leave both responsible in different degrees. This argument extends the essays’ broader concern with divided responsibility: institutions that make the source of decisions visible can help the public judge those entrusted with common duties.
Interstate Conflict thus gathers a range of practical disagreements into a single constitutional problem. Contested western lands, burdens placed on neighboring consumers, quarrels over public debt, and retaliation over contracts are not presented as isolated accidents. They are pressures that a loose union might leave unresolved, magnify, and pass from one state to another. The essays’ answer is to argue for a stronger common framework, while insisting that public consent and institutional checks must accompany governmental capacity.


