Donal O’Sullivan ... received his M.A. and Ph.D. from the Rheinische Friedrich-Wilhelms-University in Bonn, Germany. He has also completed the Habilitation, the highest academic degree in German academia. His previous book, Stalin s Cordon Sanitaire, is the recipient of the 2008 Historian s Prize of the Kronauer Foundation. He is (2010) Assistant Professor in the Department of History at California State University in Northridge, California.