Motivated by the reentry of tyranny into political discourse and political action, this new collection of essays compares ancient and contemporary accounts of tyranny in an effort to find responses to current political dilemmas and enduring truths. Identified by Plato and Aristotle as the worst kind of regime, the concept of tyranny was called into question during the Enlightenment and finally rejected in the 20th century as questions of good and evil were separated from facts-the proper domain for political science. However, in our globally interconnected world, tyrants are no longer dangerous solely to their subjects and neighbors, but to all. Confronting Tyranny brings together distinguished scholars to explore the lessons of classical political philosophy for the present political crisis of understanding and action.