From Union to Disunion
Federalist PapersThis thread follows the escalating hypothetical conflict in which regional division invites rivalry, foreign leverage, and eventually military danger.
increasing
Bearing strength in each event
decreasing
The Alternative Named

The Alternative Named
Adoption or separation
Publius argues that the choice is not simply between two constitutional texts but between adoption and possible dismemberment. Jay responds that a connected people should consider carefully the costs of separation.
Disunion becomes imaginable
The essays make division a political alternative that must be evaluated, not dismissed. This framing directs later arguments toward the practical consequences of separate sovereignties.
Regional Suspicion

Regional Suspicion
Interests diverge
Jay imagines Northern and Southern confederacies developing different commercial alignments and unequal power. Neighboring governments would begin to view one another with fear and envy.
Alliance fails to reassure
Separate confederacies might promise mutual defense, but their distinct interests could make such commitments unreliable. The essay presents division as the beginning of a security dilemma.
Disputes Multiply

Disputes Multiply
Competing claims
Hamilton lists territory, trade, debt, and contracts as sources of conflict among independent governments. Each issue would invite competing rules and local interpretations.
No accepted arbiter
Without a common authority, unresolved disputes could move from argument to reprisals. The essay turns disunion from a vague possibility into a sequence of plausible conflicts.
Military Competition

Military Competition
Security expenditures grow
Hamilton predicts that vulnerable States would build armies and fortifications to offset stronger neighbors. Rival establishments would intensify suspicion and place new burdens on citizens.
Liberty under strain
Military readiness could elevate soldiers and executives over civilian life. The pursuit of safety would risk producing the very loss of freedom that Union is supposed to prevent.
Foreign Powers Exploit Division

Foreign Powers Exploit Division
Competing alliances
Hamilton and Jay warn that separate States could seek foreign partners against one another. Foreign governments would gain leverage by encouraging local rivalries and offering selective assistance.
A fractured future
Division could leave American trade and security subject to external influence. The predicted endpoint is a country weakened by internal conflict and unable to protect common interests.
Federalist Nos. 1–2, October 27–31, 1787
Federalist No. 5, November 10, 1787
Federalist No. 7, November 15, 1787
Federalist No. 8, November 20, 1787
Federalist Nos. 7–11, November 15–24, 1787