Why does liberal democracy take hold in some countries but not in others? Why do we observe such different outcomes in military interventions, from Germany and Japan to Afghanistan and Iraq? Do efforts to export democracy help as much as they hurt? These are some of the most enduring questions...

This paper explores the interventionist mindset required for success under the U.S. government's foreign policy strategy of liberal hegemony. This approach to foreign policy contains an inherent tension. Its adherents claim a commitment to liberal values but successfully implementing the...

This chapters surveys the main ideas and tensions in the classical liberal treatment of defense, international relations, and war-making. This sets the stage for a discussion of the feasibility of interstate federalism by identifying key issues and challenges that such a system will need to...