The German Fifth Column in the Second World War

Originally published in English in 1956, this book is divided into 3 parts: the first outlines how, after 1933, those outside Germany began to become increasingly afraid of sinister operations on the part of German agents and the partisans of National Socialism. The second part examines the role of the German Fifth column during the war and the third part analyses the role of the groups which were living outside Germany at the time Hitler started his assault.