Ursula Lehmkuhl is Professor of Modern History and Chair of the History Department, John F. Kennedy Institute for North American Studies, Freie Universität Berlin. She teaches nineteenth century American cultural and social history, twentieth century American and Canadian diplomatic history, and the history of American and Canadian foreign relations. She published several books, among them Canada's Overtures towards Asia: The Colombo Plan, the New Commonwealth and the Reconstruction of the Sterling Area, 1947-1952 (1990); Enemy Images in American History (1997), Theorien Internationaler Politik (3rd ed. 2000), Pax Anglo-Americana: Machtstrukturelle Grundlagen anglo-amerikanischer Asien- und Fernostpolitik in den 1950er Jahren (1999), and Atlantic Communications: The Media in American and German History from the 17th to the 20th Century (2004). Her research interests include German Immigrant Letters, 19th and 20th century, the history of Anglo-American relations during the 19th century, Canadian-American relations after September 11 and Colonial Governance in British and French North America.