The Siegfried Line
The idea of a mighty defensive system stretching along Germany’s western front first comes to Hitler in 1936 when he is pursuing a policy of German expansion. With plans to invade countries to the east, he needs to ensure Germany’s western border with France is secure. In 1938, shrouded in secrecy, the German Army starts work on the immense fortifications.
Expired: 05/21/15Video has closed captioning.