Carl Philipp Gottfried (or Gottlieb) von Clausewitz (; 1 June 1780 – 16 November 1831) was a Prussian general and
military theorist who stressed the "moral" (meaning, in modern terms,
psychological) and political aspects of war. His most notable work,
Vom Kriege (
On War), was unfinished at his death. Clausewitz was a
realist in many different senses and, while in some respects a romantic, also drew heavily on the rationalist ideas of the European
Enlightenment.