David_Glantz--Walther_Model

David M. Glantz (born January 11, 1942) is an American military historian known for his books on the Red Army during World War II and as the chief editor of The Journal of Slavic Military Studies.Born in Port Chester, New York, Glantz received degrees in history from the Virginia Military Institute and the University of North Carolina at Chapel Hill. He is a graduate of the U.S. Army Command and General Staff College, Defense Language Institute, Institute for Russian and Eastern European Studies, and U.S. Army War College.
Glantz had a career of more than 30 years in the U.S. Army, served in the Vietnam War, and retired as a colonel in 1993.