Truppenfuhrung ('unit command') served as the basic manual for the German Army from 1934 until the end of World War II and laid the doctrinal groundwork for blitzkrieg and the early victories of Hitler's armies. Reading it is as close to getting inside the minds behind the Third Reich's war machine as you are likely to get.

Bruce Condell has worked with defense contractors in the U.S. and Asia and has been involved in the development of numerous military aircraft.

Maj. Gen. David T. Zabecki, editor of Vietnam magazine and author of several military history books, served as an infantry rifleman in Vietnam. After earning his commission, he was an operations officer, intelligence officer, and a chief of staff. In 2003 he was the senior security adviser on the U.S. co-ordinating and Monitoring Mission in Israel. He lives in Germany.