KARL W. SCHWEIZER is Professor of History, New Jersey Institute of Technology, Newark, USA. He has published numerous books on diplomatic history, including England, Prussia and the Seven Years War (1989); and War, Politics and Diplomacy (2001). Further publications include the Art of Diplomacy (1994); Francois de Callières: Diplomat and Man of Letters (1995); and Lord Chatham (1993). A former Ph.D ... Read morestudent of Butterfield, he has also edited the latter's previously unpublished essays on the History of Science (1998), wrote the entry on Butterfield for the Global Historical Writing (1998) and published an article on Butterfield's educational thought for Technology Studies. PAUL SHARP is Professor and Head of Political Science at the University of Minnesota Duluth, USA. He is the author of two books and numerous articles on foreign policy and diplomacy. He is currently co-editor of The Hague Journal ofDiplomacy and was the founding chair of both the Diplomatic Studies and English School sections of the International Studies Association. Show Less