Prof. Dr. jur. Vladimir Dedijer (1914-1990), the Yugoslav historian and eyewitness, Tito biographer and President of the International Russell Tribunal, has documented for the first time and comprehensively one of the bloodiest and most unknown chapters of the Second World War: the bestial murder of 800.000 Orthodox Serbs in Ustasha-Croatia, the »Kingdom of God«, by henchmen of the Catholic Church between 1941 and 1943. Particularly since the beginning of the civil wars in Yugoslavia, whose roots and background are illuminated in great depth by this historical documentation, this work has increased its circulation considerably: the fourth revised German edition has been published by now.