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| Battle of Norway (1940) | |
|---|---|
| Conflict | Norwegian Campaign |
| Partof | World War II |
| Date | April–June 1940 |
| Place | Norway |
| Result | German Reich victory; Occupation of Norway by Nazi Germany |
| Combatant1 | Kingdom of Norway; United Kingdom; France; Poland; Netherlands; Belgium |
| Combatant2 | Nazi Germany |
| Commander1 | Haakon VII of Norway; Otto Ruge; Harold Alexander; Claude Auchinleck; Winston Churchill; Bjørnstjerne Bjørnson |
| Commander2 | Adolf Hitler; Wilhelm Keitel; Erich Raeder; Niklas von Falkenhorst |
| Strength1 | Multinational Allied expeditionary forces, Norwegian Army and Navy units |
| Strength2 | Wehrmacht divisions, Kriegsmarine warships, Luftwaffe squadrons |
Battle of Norway (1940) The Norwegian Campaign of April–June 1940 was a combined naval, air and ground campaign in World War II in which Nazi Germany invaded Norway and Denmark to secure strategic access to North Sea routes, iron ore shipments from Sweden, and naval bases. Allied attempts by the United Kingdom, France, and exiled contingents including Poland and the Netherlands sought to prevent occupation, defend key ports such as Narvik and Trondheim, and contest control of the North Atlantic, but ultimately withdrew following German consolidation and shifting priorities tied to the Battle of France.
The strategic rationale for operations in Scandinavia intertwined with resource flows from Sweden—notably ore transported via the Port of Narvik and the winter route through Luleå—and with control of North Sea and Atlantic Ocean access critical to Royal Navy and Kriegsmarine operations. German planners led by Adolf Hitler and the Oberkommando der Wehrmacht under Wilhelm Keitel considered securing Norwegian coastline and airfields to shield shipping from Royal Navy interdiction and to base Luftwaffe units for anti-shipping strikes. British strategic debates involving Winston Churchill and Neville Chamberlain revolved around pre-emptive moves, mining operations proposed by Churchill and the politically fraught implications for Sovereignty of Norway and relations with Swedish neutrality and Soviet Union calculations.
German operational planning, codified as Operation Weserübung, was directed by Niklas von Falkenhorst under orders from Adolf Hitler, coordinated with surface forces from the Kriegsmarine and air support from the Luftwaffe. Allied contingency measures, including proposals by Winston Churchill and implementation by Harold Alexander and Claude Auchinleck, contemplated securing Norwegian ports and supporting the Norwegian government led by King Haakon VII and Chief of Defence Otto Ruge. Intelligence assessments from the British Admiralty and diplomatic signals intercepted by Bletchley Park influenced timing. Norway’s political leadership debated neutrality under pressure from neighbouring capitals such as London, Stockholm, and Berlin while the Norwegian Merchant Fleet and the Royal Norwegian Navy prepared limited mobilization under legal frameworks established in the 1918 constitution.
On 9 April 1940, Operation Weserübung commenced with coordinated amphibious and airborne assaults on Norwegian and Danish targets. German forces seized Oslo via modification of the heavy cruiser Blücher through the Oslofjord, while airborne units captured airfields near Fornebu and ports including Kristiansand, Egersund, Bergen, Trondheim, and Narvik. Norwegian units under Otto Ruge and political leaders including King Haakon VII and Prime Minister Johan Nygaardsvold evacuated as the Storting and government elements sought asylum aboard Allied warships such as HMS Warspite and HMS Ark Royal. Allied counterlandings at Narvik—involving HMS Exeter, HMS Sheffield, and destroyer flotillas—briefly contested German control and engaged German destroyers and U-boats.
The campaign featured land battles in northern Norway around Narvik where Norwegian forces, supported by Norwegian Independent Company 1 commandos and Allied infantry brigades from France, Poland, and United Kingdom, fought in arctic conditions. The Battle of Narvik saw tactical victories by Allied troops but strategic isolation after the fall of France. In central Norway the capture of Trondheim and nearby Dombås disrupted interior lines; heavy fighting around Fortress Oscarsborg in the Oslofjord delayed German advance temporarily after the sinking of Blücher. Coastal garrison actions at Narvik, Bergen, and Trondheim interplayed with engagements involving coastal artillery and mountain warfare in the Nordland and Troms counties. Combined operations included commando raids by British Commandos and actions by the exiled Free Norwegian Forces.
Naval battles involved major surface actions, destroyer clashes, and losses such as the sinking of Blücher and damage to HMS Cossack; the Kriegsmarine risked capital ships including Scharnhorst and Gneisenau while the Royal Navy deployed battlecruisers, cruisers, and destroyer squadrons. Air power from the Luftwaffe based on captured airfields and seaborne air cover contested the Royal Air Force and Norwegian air assets including No. 263 Squadron RAF and detachments from RAF Coastal Command. Anti-shipping strikes by Stuka dive-bombers, air interdiction of reinforcements, and maritime patrols by Heinkel He 111 and Ju 87 aircraft shaped outcomes. Submarine warfare by German U-boat flotillas and Allied submarines added a layer of attrition in fjord and coastal waters.
Following capitulation of organized Norwegian forces and Allied withdrawal in June 1940, Nazi Germany established an occupation administration under Reichskommissariat Norwegen headed by Josef Terboven. A collaborationist government led by Vidkun Quisling and the Nasjonal Samling party attempted to consolidate control, while a clandestine resistance movement involving Milorg, Osvald Group, Shetland Bus operations, and exiled military formations conducted sabotage, intelligence, and rescue operations in coordination with Special Operations Executive and MI6. The Norwegian resistance preserved significant merchant shipping in the Nortraship fleet and aided Allied intelligence on German naval and U-boat movements.
The German victory secured strategic access to Atlantic sea lanes, protected iron-ore shipments from Sweden via Narvik and Luleå, and provided naval and air bases that affected subsequent operations including the Battle of the Atlantic and Arctic convoys to the Soviet Union. Politically, the campaign influenced leadership changes in United Kingdom politics, accelerating Winston Churchill’s prominence and reshaping British strategic priorities that contributed to commitments in the Norwegian Sea and North Atlantic. Military lessons about combined operations affected later Allied planning for amphibious warfare and air-sea coordination in campaigns such as the Dieppe Raid and Operation Overlord. The occupation engendered long-term Norwegian resistance, postwar legal reckoning for collaborationists, and reinforced Scandinavian security concerns that influenced postwar alignments including NATO membership.