Norwegian campaign

• 1. Iron Ore And The Baltic

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  In the winter months of 1939, a frozen Baltic Sea blocked most German shipping routes. This natural barrier forced Nazi Germany to rely on an alternative path for its vital iron ore supplies from Sweden. The port of Narvik in northern Norway became the only year-round outlet for these critical resources. Without this route, German steel production would have stalled as the Baltic froze over completely.

  The strategic value of Narvik drove much of the early planning for both sides. British officials understood that controlling this port could cut off Germany's industrial engine. They feared that if the Royal Navy seized Narvik, it would cripple German war efforts before they could fully mobilize. This concern shaped Operation Wilfred, a plan to lay mines in Norwegian waters and force transport ships into international waters where the British fleet could intercept them.

  German naval planners recognized the danger immediately. Großadmiral Erich Raeder warned Adolf Hitler repeatedly about the threat of Allied bases at Bergen, Narvik, and Trondheim. He argued that losing control of these ports would leave the North Sea closed to German vessels. The Kriegsmarine would be trapped even within the Baltic Sea itself. Controlling Norway offered Germany a way to break the British blockade across the North Atlantic.

• 2. The Altmark Boarding

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  On the 16th of February 1940, the German auxiliary ship Altmark entered Norwegian territorial waters near the Jøssingfjord. She carried 299 prisoners taken from Allied ships sunk by the German cruiser Graf Spee during her commerce raiding operations in the South Atlantic. A Norwegian naval escort accompanied the vessel as she proceeded southwards toward Bergen harbor.

  British destroyers HMS Cossack intercepted the Altmark in the late hours of that night. Under the cover of darkness, boarding parties fought hand-to-hand combat with the German crew. Seven German sailors died during the struggle before the British freed all 299 prisoners. The incident sparked strong protests from both governments regarding violations of Norwegian neutrality.

  This confrontation accelerated German invasion plans significantly. On the 21st of February, General Nikolaus von Falkenhorst took command of planning for what became Operation Weserübung. Hitler officially approved the invasion on the 1st of March 1940. The Altmark incident transformed theoretical concerns about Scandinavian security into immediate operational urgency for Berlin's military leadership.

• 3. Weserübungs Execution

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  German forces launched their coordinated invasion on the 9th of April 1940 at 04:15 Norwegian time. Six primary targets received amphibious landings while paratroops captured key airfields simultaneously. Gruppe 1 transported 2,000 Gebirgsjäger troops to Narvik using ten destroyers under General Eduard Dietl. Gruppe 2 moved heavy cruisers and four destroyers toward Trondheim.

  The Oslofjord presented the most serious resistance when Admiral Hipper engaged defensive batteries near Drøbak. The cruiser Blücher was hit by every shell fired from Oscarsborg Fortress within minutes. She sank after being struck by 40-year-old torpedoes launched from land-based tubes. This single action delayed the main German invasion force for over 24 hours despite the capital falling less than 12 hours later through airborne troops.

  Danish forces capitulated by 08:43 that same morning after King Christian X consulted with his government. The small Danish army used obsolete equipment but resisted in several locations including Amalienborg Palace. Germany occupied Denmark until the 5th of May 1945, securing vital air bases needed to control the Skagerrak strait between Norway and Denmark.

• 4. Narvik Naval Battles

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  Two major naval engagements occurred at Narvik on 10 and the 13th of April 1940 where Allied destroyers destroyed the remaining German fleet. Captain Bernard Warburton-Lee led eight British destroyers into the Ofotfjord during the First Battle of Narvik. He made three passes on five German destroyers before sinking two and disabling another.

  Warburton-Lee died when his flagship HMS Hardy was severely damaged during a final attack. Four German destroyers converged on the British fleet while they prepared their last assault. Hostile and Havock raced ahead only to return and aid the retreat of Hotspur which had run into the sinking Hunter. By evening, most German ships had abandoned their vessels and scuttled them.

  The Second Battle of Narvik began on the 13th of April when Warspite entered the Vestfjord. British destroyers engaged German counterparts that had come to meet them. Most German ships attempted to flee up the Rombaksfjord but ran out of fuel and ammunition. Four British destroyers chased the fleeing vessels through narrow fjords until all German crews abandoned their ships by 18:30 local time.

• 5. Allied Expeditionary Withdrawal

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  A British, French and Polish expeditionary force of 38,000 troops landed in northern Norway with moderate success. They conducted operations at Åndalsnes and Namsos while Norwegian forces defended eastern valleys. The campaign ended with rapid strategic retreat after the Battle of France began in May 1940.

  By the 28th of April Allied leadership decided to withdraw all British and French forces from southern and central regions. Sickleforce escaped from Åndalsnes by the 2nd of May just hours before the German 196th Division captured the port. Mauriceforce evacuated from Namsos on the 2nd of May though two rescue ships were sunk by Junkers Ju 87 dive bombers.

  Organized Norwegian military resistance ceased on the 5th of May with capitulations at Hegra and Vinjesvingen. The failure of this central campaign directly caused the Norway Debate which resulted in Prime Minister Neville Chamberlain's resignation. Winston Churchill took office following these political consequences of the failed intervention.

• 6. Government Exile And Resistance

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  King Haakon VII and Crown Prince Olav fled Oslo during the initial invasion days. They moved through Hamar and Elverum before reaching Tromsø by the 1st of May 1940. This northern city became the de facto capital for the remaining weeks of the campaign as headquarters for both King and cabinet.

  Vidkun Quisling attempted a coup on the 9th of April when he seized control of a radio broadcasting station. His announcement declaring himself Prime Minister came at 19:32 that evening. The Administrative Council appointed by Norway's Supreme Court replaced his government on the 15th of April after negotiations broke down completely.

  The royal family refused to accept German surrender terms demanding recognition of Quisling's regime. King Haakon stated he would abdicate if the government chose to surrender. Elements of the Norwegian military escaped overseas to continue fighting despite occupation of the entire country. These forces maintained sovereign authority from London throughout the war years.