Fear for a world-embracing Fifth Column did not spread over a large part of the earth, as we indicated in the introduction to Part I, until after and because of the Austrian Anschluss and the annexation of the Sudeten area. They were the two greatest, the two only important successes really that Hitler was able to achieve by manipulating mass movements in foreign parts. In both cases they were also due to specifically geographical factors as well as to social, economic and historical ones. The latter were of especial force in the Sudeten area.