Although widely regarded as the founding father' of realism in International Relations, this book argues that Hans J. Morgenthau's legal background has largely been neglected in discussions of his place in the canon' of IR theory. Morgenthau was a legal scholar of German-Jewish origins who arrived in the United States in 1938. He went on to become a distinguished professor of Political Science and a prominent public intellectual. Rather than locate Morgenthau's intellectual heritage in the German tradition of Realpolitik, this book demonstrates how many of his central ideas and concepts stem...