On WarBy: Carl Clausewitz Combining military theory and raw accounts of its practice, Carl von Clausewitz's treatise On War has had a profound influence on subsequent thinking on warfare. This Penguin Classics edition is edited with an introduction by Anatol Rapoport. Writing at the time of Napoleon's greatest campaigns, Prussian soldier and writer Carl von Clausewitz created this landmark treatise on the art of warfare, which presented war as part of a