on c-span2, currently we are at the university of maryland in college park, maryland, in the katherine porter room, and we're talking with university of maryland professors who are also authors. we are pleased now to be joined by history professor jon sumida, who has written this book, "decoding clausewitz," a new approach to on more. professor sumida, who was carl levin clausewitz? >> he was a prussian officer who fought against napoleon in the words of the french revolution and by becky first win in action as a teenager in the 1790s. later rose to be a made great officer, was present at the great battle in 1806. was a subordinate of the chief of staff andy army, and was a participant in the reform of the prussian army after its great defeat. in 1812 he resigned his commission because he disagrees with the king in terms of the decision to be an ally of france, the former any. so he goes over to the russian army, serves as an advisor to the czar, and is attached to senior russian commanders, fights at some of the great battles of 1812. it was at the retreat of the french army when his trap in

at the university of maryland, a college park maryland and of foreign bank library in the katherine anne porter room and we are talking with the university of maryland professors who are also authors joined by a history professor jon sumida, who has written this book, "decoding clausewitz: a new approach to on war." professor jon sumida, who was coral clausewitz? >> he fought against napoleon and the entire and first as a teenager in 79 these leader to be made great officer in the battle in 1906 and was subordinate to the chief of staff of the army and was a participant in the reform of the prussian army after its three defeat. in 1812 he resigned the commission because he disagrees with the king in terms of their decision to be an ally of france and invade russia, so he goes over to the russian army and serves as an adviser to the czar and is attached to senior russian commanders in the battles of 1812 with at the retreat of the army when it's retract in the late fall of 1812 and goes on when they say it changes sides to fight the great battles in of bolten and walton and in the 1850 campaign.