The code name for Germany’s invasions of Denmark and Norway during World War II took its name from this river.
Rhine
Weser
Rhone
Glomma
Weser, a German river that flows into the North Sea. Operation Weser?bung (Weser Exercise) began on the morning of April 9, 1940, and was intended to prevent a planned Franco-British occupation of Norway. The Kriegsmarine took an active role in the invasion using several battleships, cruisers, and U-boats to cover the German amphibious landings.