This conversation on the major themes in Michael Walzer’s work considers the possibility of political morals on an international scale, exploring the paradigm of the "just" war and its transformations in modern, asymmetrical warfare. Readers are also reminded of the complexity of social justice and democracy. The book advocates a "common" policy, rooted in specific cultural traditions yet capable of dialoguing beyond its own borders. This intellectual biography establishes the role that philosophers and social critics can play in the modern polis.