One of the most surprising developments in Mexico's transition to democracy is the outbreak of criminal wars and large-scale criminal violence. Why did Mexican drug cartels go to war as the country transitioned away from one-party rule? And why have criminal wars proliferated as democracy has consolidated and elections have become more competitive subnationally? In Votes, Drugs, and Violence, Guillermo Trejo and Sandra Ley develop a political theory of criminal violence in weak democracies that elucidates how democratic politics and the fragmentation of power fundamentally shape cartels' incentives for war and peace. Drawing on in-depth case studies and statistical analysis spanning more than two decades and multiple levels of government, Trejo and Ley show that electoral competition and partisan conflict were key drivers of the outbreak of Mexico's crime wars, the intensification of violence, and the expansion of war and violence to the spheres of local politics and civil society.

Professor Holsti examines the origins of war and the foundations of peace of the last 350 years.

Edited by one of the most renowned scholars in the field, Richard Betts' Conflict After the Cold War assembles classic and contemporary readings on enduring problems of international security. Offering broad historical and philosophical breadth, the carefully chosen and excerpted selections in this popular reader help students engage key debates over the future of war and the new forms that violent conflict will take. Conflict After the Cold War encourages closer scrutiny of the political, economic, social, and military factors that drive war and peace. New to the Fifth Edition: Original introductions to each of 10 major parts as well as to the book as a whole have been updated by the author. An entirely new section (Part IX) on "Threat Assessment and Misjudgment" explores fundamental problems in diagnosing danger, understanding strategic choices, and measuring costs against benefits in wars over limited stakes. 12 new readings have been added or revised: Fred C. Iklé, "The Dark Side of Progress" G. John Ikenberry, "China’s Choice" Kenneth N. Waltz, "Why Nuclear Proliferation May Be Good" Daniel Byman, "Drones: Technology Serves Strategy" Audrey Kurth Cronin, "Drones: Tactics Undermine Strategy" Eyre Crowe and Thomas Sanderson, "The German Threat? 1907" Neville Henderson, "The German Threat? 1938" Vladimir Putin, "The Threat to Ukraine from the West" Eliot A. Cohen, "The Russian Threat" James C. Thomson, Jr., "How Could Vietnam Happen? An Autopsy" Stephen Biddle, "Afghanistan’s Legacy" Martin C. Libicki, "Why Cyberdeterrence is Different"

This is a book on conflict and consensus aimed at the general reader. In active, plain and direct language it makes the seemingly abstract and complex issues simple. Its view of peace is well-rounded, tough-minded, one that well understands the difficult world of social and personal violence and conflict. At its heart is a simple finding: "to wage peace we need to foster freedom." The human race can best achieve that simple aim by "leaving people alone to form their own communities." "The Conflict Helix "avoids the ambiguous in favor of the categorical; the hedged, qualified statement for the direct Rummel presents a series of basic principles, each concerning an aspect of conflict and peace - psychological, interpersonal, societal, international - and each aspect having its own master principle. These principles are not mere organizational props, but are deeply theoretical and empirically fundamental. The volume expresses the core ideas, results and conclusions of Rummel's major, five-volume work on "Understanding Conflict and War. "In discarding technical material and focusing on principles and meaning, "The Conflict Helix "presents an executive summary of a lifetime of work in a digestible form. In light of recent events in Europe, Asia and Latin American this work takes on a special poignancy for the developing no less than the industrialized worlds. Hence, this book should be of value to the general reader as well as professionals and advanced students of international politics.

Introducing students to the scientific study of peace and war, this exciting new reader provides an overview of important and current scholarship in this dynamic area of study. Focusing on the factors that shape relationships between countries and that make war or peace more likely, this collection of articles by top scholars explores such key topics as dangerous dyads, alliances, territorial disputes, rivalry, arms races, democratic peace, trade, international organizations, territorial peace, and nuclear weapons. Each article is followed by the editors’ commentary: a "Major Contributions" section highlights the article’s theoretical advances and relates each study to the broader literature, while a "Methodological Notes" section carefully walks students through the techniques used in the analysis. Methodological topics include research design, percentages, probabilities, odds ratios, statistical significance, levels of analysis, selection bias, logit, duration models, and game theory models.