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Border Law

Border Law

The First Seminole War and American Nationhood

Deborah A. Rosen

ISBN 9780674967618

Publication date: 04/06/2015

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The First Seminole War of 1816–1818 played a critical role in shaping how the United States demarcated its spatial and legal boundaries during the early years of the republic. Rooted in notions of American exceptionalism, manifest destiny, and racism, the legal framework that emerged from the war laid the groundwork for the Monroe Doctrine, the Dred Scott decision, and U.S. westward expansion over the course of the nineteenth century, as Deborah Rosen explains in Border Law.

When General Andrew Jackson’s troops invaded Spanish-ruled Florida in the late 1810s, they seized forts, destroyed towns, and captured or killed Spaniards, Britons, Creeks, Seminoles, and African-descended people. As Rosen shows, Americans vigorously debated these aggressive actions and raised pressing questions about the rights of wartime prisoners, the use of military tribunals, the nature of sovereignty, the rules for operating across territorial borders, the validity of preemptive strikes, and the role of race in determining legal rights. Proponents of Jackson’s Florida campaigns claimed a place for the United States as a member of the European diplomatic community while at the same time asserting a regional sphere of influence and new rules regarding the application of international law.

American justifications for the incursions, which allocated rights along racial lines and allowed broad leeway for extraterritorial action, forged a more unified national identity and set a precedent for an assertive foreign policy.


  • Rosen not only provides a full account of the border conflict but also offers a thorough discussion of how the campaign reflected contemporary views of the young nation’s place in the world… Rosen argues convincingly that the Seminole War established a pattern of assertive U.S. behavior that defined the early decades of U.S. history, leading to expanded economic/political opportunities but also inevitable conflict with Native Americans and regional neighbors.

    —S. J. Ramold, Choice


  • 2016, Winner of the Bancroft Prize
  • 2016, Winner of the Littleton-Griswold Prize


  • Deborah Rosen is Professor of History at Lafayette College.

Book Details

  • 328 pages
  • 6-1/8 x 9-1/4 inches
  • Harvard University Press