German development of coastal forts in Norway during the second World War - Janne Wilberg
The work on fortifying Norway commenced immediately
after the attack in April 1940. The occupation powers used
already existing Norwegian coastal forts, changed them somewhat
and began the development partly in accordance with Norwegian
plans from the interwar period. After extensive inspections
during the spring and summer of 1940, original plans for the
fortification of strategically important places were developed.
The wish to control Norway was based on the need to secure
the transportation of ore from Narvik, secure the access to
the Atlantic from Germany and the need for bases for the German
navy in Norway.