The History Place
The History Place: The Triumph of Hitler: Nazis March Into the Rhineland
Discusses Hitler's decision to violate the Treaty of Versailles and the buildup of Germany's army in preparation for the occupation and reclamation of the Rhineland, an area which had become a demilitarized zone after World War I.
National Archives (UK)
National Archives Learning Curve: The German Occupation of the Rhineland
Partial original copies of documents from various nations of the Allies force responding to the occupation by Germans of Rhineland region.