Toby J. Rider is Associate Professor of Political Science at Texas Tech University. His work has appeared in The Journal of Politics, International Studies Quarterly, Journal of Conflict Resolution, and Journal of Peace Research, among other publications.

1. Introduction; Part I. The Settlement of Borders; 2. Conceptual Foundations; 3. A Theory of Border Settlement; 4. An Empirical Evaluation of Border Settlement; Part II. The Effects of Unsettled Borders on Interstate Relationships; 5. A Theory of Borders and Rivalry Initiation; 6. An Empirical Evaluation of Borders and Rivalry Initiation; Part III. Borders and Rivalry Termination; 7. A Theory of Borders and Rivalry Termination; 8. An Empirical Evaluation of Borders and Rivalry Termination; 9. Conclusion.