Arctic Convoys of World War II
| Arctic convoys of World War II | |||||
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| Part of World War II | |||||
 View from the cruiser HMS Sheffield as she sails on convoy duty through the waters of the Arctic Ocean. In the background are merchant ships of the convoy. |
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| Belligerents | |||||
 United Kingdom Soviet Union Canada United States
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 Germany
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| Casualties and losses | |||||
| 85 merchant vessels 16 warships |
4 warships 30 submarines |
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The Arctic convoys of World War II were oceangoing convoys which sailed from the United Kingdom, Iceland, and North America to northern ports in the Soviet Union – primarily Arkhangelsk (Archangel) and Murmansk, both in modern-day Russia. Although there were two gaps with no sailings between July and September 1942, and March and November 1943, there were 78 convoys between August 1941 and May 1945, sailing via several seas of the Atlantic and Arctic oceans.
About 1400 merchant ships delivered essential supplies to the Soviet Union under the Lend-Lease program, escorted by ships of the Royal Navy, Royal Canadian Navy, and the U.S. Navy. Eighty-five merchant vessels and 16 Royal Navy warships (two cruisers, six destroyers, eight other escort ships) were lost. Nazi Germany's Kriegsmarine lost a number of vessels including one battleship, three destroyers and at least 30 U-boats as well as a large number of aircraft. The convoys demonstrated the Allies' commitment to helping the Soviet Union, prior to the opening of a Second Front, and tied up a substantial part of Germany's Navy and Air Force.
The Arctic convoys ran in two series, following the first convoy, which was un-numbered but code-named “Dervish”.
The first series, PQ (outbound) and QP (homebound), ran from September 1941 to September 1942. These convoys ran twice monthly, but were interrupted in the summer of 1942 when the series was suspended after the disaster of PQ17 and again in the autumn after the final convoy of the series, PQ18, due to lengthening daylight hours, and continued preparations for Operation Torch.
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