Arctic Convoys of World War II - Strategic Impact

Strategic Impact

The Arctic convoys caused major changes to naval dispositions on both sides, which arguably had a major impact on the course of events in other theatres of war. As a result of early raids by destroyers on German coastal shipping and the Commando raid on Vaagso, Hitler was led to believe that the British intended to invade Norway again. This, together with the obvious need to stop convoy supplies reaching the Soviet Union, caused him to direct that heavier ships, centred on the battleship Tirpitz, be sent to Norway. The Channel Dash was partly undertaken for this reason.

As a "fleet in being", Tirpitz and the other German capital ships tied down British resources which might have been better used elsewhere, for example combating the Japanese in the Indian Ocean. The success of Gneisenau and Scharnhorst in Operation Berlin during early 1941 had demonstrated the potential German threat. However, as the air gap over the North Atlantic closed, Huff-Duff (radio triangulation equipment) improved, airborne centimetric radar was introduced and convoys received escort carrier protection, the scope for commerce raiding diminished.

Aside from an abortive attempt to interdict PQ12 in March 1942 and a raid on Spitsbergen in September 1943, Tirpitz spent most of World War II in Norwegian fjords. She was penned in and repeatedly attacked until she was finally sunk in Tromsø fjord on 12 November 1944 by the RAF. The other Kriegsmarine capital ships never got to Norway (e.g. Gneisenau), were chased off, or were sunk by superior forces (e.g. Scharnhorst). In particular, the unsuccessful attack on convoy JW-51B (the Battle of the Barents Sea), where a strong German naval force failed to defeat a British escort of cruisers and destroyers, infuriated Hitler and led to the strategic change from surface raiders to submarines. Some capital ships were physically dismantled and armament used in coastal defences. .

Leningrad under the siege was one of important destinations for supplies from the convoys. From 1941 food and munition supplies were delivered from British convoys to Leningrad by trains, barges, and trucks. Supplies were often destroyed by the Nazi air-bombings, and by Naval Detachment K while on the way to Leningrad. However, convoys continued deliveries of food in 1942, 1943, and through 1944. Towards the end of the war the material significance of the supplies was probably not as great as the symbolic value hence the continuation—at Stalin's insistence—of these convoys long after the Soviets had turned the German land offensive.