The theme of this issue is the correlation between philosophical reflection and war. The wars occurring in the world at this time reveal something special about human beings as political subjects, while at the same time showing that the age of trade and the democratization of society are not enough to put an end to warfare among peoples. What is the role of ideas in world and war history? What do the great theorists have to tell us about the phenomenon of war? What is the moral dimension of war? A number of these questions are addressed in this issue.