Professor Emeritus of History at Indiana University, Robert H. Ferrell is the author or editor of many books in American foreign relations, presidential history, and military history, including Five Days in October: The Lost Battalion of World War I; Collapse at Meuse-Argonne: The Failure of the Missouri-Kansas Division; and most recently Argonne Days in World War I (all available from the University of Missouri Press). He lives in Ann Arbor, Michigan.