The surrender of Hegra Fortress marked the end of organized resistance to this action, defenses against which were further weakened by Operation Alphabet.
The surrender of Hegra Fortress marked the end of organized resistance to this action, defenses against which were further weakened by Operation Alphabet. Oscarsborg Fortress provided the first counter-action during this event when it sunk the Blucher. The Shetlands Bus program helped those who either wanted to escape this action or aid its opposition. This event was precipitated by the Cossack's liberation of prisoners aboard the Altamark, which had sailed into waters that were later the site of the Battles of Narvik during this event. This event inspired the formation of Milorg and similar groups, one of which attacked hydroelectric plant in order to disrupt heavy water production. This event, which was immediately preceded by a similar action against Denmark, caused the flight of Haakon VII and opened the door for Vidkun Quisling's coup. For 10 points, name this military campaign that began with the Kriegsmarine sailing up some fjords.
The surrender of Hegra Fortress marked the end of organized resistance to this action, defenses against which were further weakened by Operation Alphabet.
the Nazi invasion of Norway [or German Invasion of Norway; or Operation Weserubung]