Peter Paret is professor emeritus at the Institute for Advanced Study. He has written widely on the history of war and society and on the relationship of art, society, and politics. He is the author of "Clausewitz and the State" (Princeton), now in its third revised edition. Most recently he gave the 2008 Lees Knowles Lectures at Cambridge University, on which this book is based, and was guest curator for the spring 2009 exhibition Myth and Modernity at the Princeton University Art Museum.