 The Federal Defence Ministry refused to include the first volume in its list of books recommended for the German army's libraries, because it contained documents signed by military leaders during the Third Reich who were still active in West Germany.Wulf went on to publish several more works about Nazi Germany, among them biographies of Heinrich Himmler and Martin Bormann.In 1961 he won the Leo Baeck Prize and in 1964 the Carl von Ossietzky Medal.