Battle of the Barents Sea
1942 CE.
Shown on the map at 73.250°, 29.000°.
The Battle of the Barents Sea was a World War II naval engagement on 31 December 1942 between warships of the German Navy (Kriegsmarine) and British ships escorting Convoy JW 51B to Kola Inlet in the USSR. The action took place in the Barents Sea north of North Cape, Norway. The German raiders' failure to inflict significant losses on the convoy infuriated Hitler, who ordered that German naval strategy would henceforth concentrate on the U-boat fleet rather than surface ships.
Text from the Wikipedia article Battle of the Barents Sea, licensed CC BY-SA 4.0.