Gathering together essays by some of the most influential modern political philosophers and theorists, War, Peace, and International Political Realism reveals the twentieth-century roots of the realist tradition and demonstrates the enduring relevance of realist insights for current international relations scholarship and foreign affairs. These essays, all of which were published in The Review of Politics, the majority during the 1940s and 1950s, reflect four major tenets of the classical realist tradition: an obligation to confront large and difficult questions about international politics, a recognition of the fundamentally tragic nature of relations among humans and states, a rejection of historical optimism, and a belief in practical morality. Keir A. Lieber provides an excellent introduction emphasizing the importance of political realism as defined by the contributors. Students and scholars of political theory, international relations, and history will welcome having these important essays in one useful volume, they are just as applicable to contemporary foreign policy challenges as they were to the crises of post-World War II international politics.