Operation Regenbogen (Arctic)

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Operation Regenbogen (Operation Rainbow) was a sortie in 1942 into the Arctic Ocean by warships of the Nazi Germany Kriegsmarine (German navy) during the Second World War. The operation culminated in the Battle of the Barents Sea.

Contents

Background

Following the hard-fought PQ 18 and the disastrous PQ 17 battles in the summer and autumn of 1942, the Allied supply convoys to the Soviet Union had been temporarily suspended. In December 1942 they started again with a new JW/RA convoy series. Against this possibility, the Kriegsmarine had concentrated a large force of surface vessels and U-boats, supported by aircraft from the Luftwaffe (German Air Force).

German plan

Regenbogen was based on a plan to intercept the next Allied convoy to Murmansk. A patrol line of four U-boats was established off Bear Island and a surface force consisting of cruisers Hipper, Lützow , and six destroyers was assembled at Altafjord. In the event of a convoy report the fleet would sail as two battle groups; one to engage the expected cruiser escort and the other to attack the convoy. The German force was handicapped by strict orders from Adolf Hitler not to take excessive risks with the capital ships, which led to a general loss of aggression. Regenbogen was also hampered by an additional aim of sending Lützow into the Atlantic following the action, which also led to a reluctance to take risks. [1]

Action

On 22 December 1942 Convoy JW 51B sailed for Murmansk and was detected by U-354 on 30 December and the German flotilla sailed from Altafjord the same day on an interception course. In the Battle of the Barents Sea, Regenbogen had some success; Hipper was able to draw off the escort as planned, allowing Lützow to close with the convoy. Excessive caution by the captain of Lutzow caused him to break off the attack having caused little damage.

Aftermath

The failure of the operation can be attributed to the spirited defence made by the convoy escort and the restrictive and contradictory orders given by Hitler to the force commander. Hitler was furious when he heard about the dismal performance of the Navy. He subjected Grand Admiral Erich Raeder, the head of the Kriegsmarine, to a 90-minute tirade, in which he berated the uselessness of the German surface fleet, and announced a decision to scrap all its ships and use its guns and men as shore defences. Raeder felt unable to continue without the confidence of his leader and offered his resignation, which was accepted. Raeder was replaced by Admiral Karl Dönitz, the commander of the U-boat fleet. [2]

Footnotes

  1. Roskill 1956, p. 292.
  2. Blair 2000, p. 155.

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Further reading