Operation Rainbow () was a 1942
sortie
A sortie (from the French word meaning ''exit'' or from Latin root ''surgere'' meaning to "rise up") is a deployment or dispatch of one military unit, be it an aircraft, ship, or troops, from a strongpoint. The term originated in siege warf ...
into the
Arctic Ocean
The Arctic Ocean is the smallest and shallowest of the world's five oceanic divisions. It spans an area of approximately and is the coldest of the world's oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, ...
by
warship
A warship or combatant ship is a naval ship that is used for naval warfare. Usually they belong to the navy branch of the armed forces of a nation, though they have also been operated by individuals, cooperatives and corporations. As well as b ...
s of the
Nazi German
Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a totalitarian dictat ...
(German Navy) during the
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. The operation culminated in the
Battle of the Barents Sea
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 Bar ...
.
Background
Following the disastrous
Convoy PQ 17
Convoy PQ 17 was an Allied Arctic convoy during the Second World War. On 27 June 1942, the ships sailed from Hvalfjörður, Iceland, for the port of Arkhangelsk in the Soviet Union. The convoy was located by German forces on 1 July, shadowed ...
and the hard-fought
Convoy PQ 18
Convoy PQ 18 (2–21 September 1942) was an Arctic convoy of forty Allied freighters from Scotland and Iceland to Arkhangelsk in the Soviet Union during the Second World War. The convoy departed Loch Ewe, Scotland on 2 September 1942, rendezvous ...
battles in the summer and autumn of 1942 and the needs of
Operation Torch
Operation Torch (8–16 November 1942) was an Allies of World War II, Allied invasion of French North Africa during the Second World War. Torch was a compromise operation that met the British objective of securing victory in North Africa whil ...
in the Mediterranean,
Allied convoys to the
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
had been temporarily suspended. In December 1942 Arctic convoys resumed with a new JW/RA convoy series. The had concentrated a large force of surface vessels and
U-boat
U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the G ...
s, supported by the aircraft of (Air Fleet 5) of the .
German plan

was based on a plan to intercept the next Allied convoy to
Murmansk
Murmansk () is a port city and the administrative center of Murmansk Oblast in the far Far North (Russia), northwest part of Russia. It is the world's largest city north of the Arctic Circle and sits on both slopes and banks of a modest fjord, Ko ...
. A patrol line of four U-boats was established off
Bear Island and a surface force consisting of the cruisers and
Lützow with six destroyers was assembled at
Altafjord. When a convoy was spotted, 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
Adolf Hitler (20 April 1889 – 30 April 1945) was an Austrian-born German politician who was the dictator of Nazi Germany from 1933 until Death of Adolf Hitler, his suicide in 1945. Adolf Hitler's rise to power, He rose to power as the lea ...
not to take excessive risks with the capital ships, which led to a general loss of initiative. was also hampered by the intention to send ''Lützow'' into the Atlantic following the action, which meant that the ship should avoid damage.
Action
On 22 December 1942
Convoy JW 51B
Convoy JW 51B was an Arctic convoy sent from United Kingdom by the Western Allies to aid the Soviet Union during the Second World War. It sailed in late December 1942, reaching the Soviet northern ports in early January 1943.
Convoy JW 51B came ...
sailed for Murmansk and was detected by on 30 December. The German flotilla sailed from Altafjord the same day. In the
Battle of the Barents Sea
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 Bar ...
, ''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
Erich Johann Albert Raeder (24 April 1876 – 6 November 1960) was a German admiral who played a major role in the naval history of World War II and was convicted of war crimes after the war. He attained the highest possible naval rank, that of ...
, the head of the , 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
Karl Dönitz (; 16 September 1891 – 24 December 1980) was a German grand admiral and convicted war criminal who, following Adolf Hitler's Death of Adolf Hitler, suicide, succeeded him as head of state of Nazi Germany during the Second World ...
, the commander of the U-boat fleet.
Order of battle
Footnotes
References
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Further reading
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{{DEFAULTSORT:Regenbogen, Operation
Arctic naval operations of World War II
Naval battles and operations of the European theatre of World War II
Military operations of World War II involving Germany
Arctic convoys of World War II