What can we learn from past leaders that is important enough to be included in the new Army Doctrine Publication (ADP) 6-22? Leadership principles the Army has used to date are inadequate. This monograph reviews some of the most revered generals in military history, to study their leadership principles and determine the commonality among them. The Army is in a state of transition after 10 years of war, and history has shown leadership lessons can be lost during a transition period to a more garrison Army. The purpose of this monograph is to reflect on leadership lessons and use criteria based upon some of the great generals from military history. The Army has the chance, like General George C. Marshall did during the interwar period between 1919-1941, by creating a new leadership manual that can save lives and create leadership principles for the Army to strive for. These changes to the new ADP can help leaders face the unknown by giving them a road map to handle issues based on principles which are proven from past revered leaders. Today's leaders have the same responsibility as General Marshall to revise the new leadership doctrine in preparation for the next war using the examples which have been proven from its past.

Approved for public release; distribution is unlimited. The opinions and conclusions expressed herein are those of the student-authors and do not necessarily represent the views of the U.S. Army Command and General Staff College or any other governmental agency. (References to these studies should include the foregoing statement.)