He taught at the Hackley School in Tarrytown, NY (1983–85) and was lecturer at Stanford University (1991–94).
He was Assistant (1994-2000) and Associate (2000-2005) Professor of History at Lewis & Clark College in Portland, Oregon.
He is the author of Conflict Analysis: Understanding Causes, Unlocking Solutions (USIP, 2013), Enlightened Nationalism: The Transformation of Prussian Political Culture, 1806-1848 (Oxford, 2000) and coauthor of The Revolutionary Era, 1789-1850 (Norton, 2002).
Holocaust Memorial Museum, developing plans for the Academy for Genocide Prevention.
In December 2008 the Task Force released a report entitled "Preventing Genocide: A Blueprint for U.S.