Battle of Narvik 1940
The two naval battles in the Ofotfjord on 10 April and 13 April were fought between the British Royal Navy and Nazi Germany's Kriegsmarine, while the two-month land campaign was fought between Norwegian, French, British, and Polish troops against German mountain troops, shipwrecked Kriegsmarine sailors and German paratroopers (Fallschirmjäger) from the 7th Air Division. Although defeated at sea off Narvik, losing control of the town of Narvik and being pushed back towards the Swedish border, the Germans eventually prevailed because of the Allied evacuation from Norway in June 1940 following the Battle of France.
Narvik provided an ice-free harbour in the North Atlantic for iron ore transported by the railway from Kiruna in Sweden. Both sides in the war had an interest in securing this iron supply for themselves and denying it to the enemy, setting the stage for one of the biggest battles since the Invasion of Poland.