Operation Dervish (1941)

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Operation Dervish
Part of Arctic naval operations of the Second World War

The minesweeper HMS Salamander was part of the escort for the convoy as it reached its destination
Date21–31 August 1941
Location
Arctic Ocean
75°N 40°E / 75°N 40°E / 75; 40 (Barents Sea)
Result Allied victory
Belligerents
United Kingdom United Kingdom
 Soviet Union		  Germany
Commanders and leaders
United Kingdom Rear Admiral Robert Burnett Nazi Germany Admiral Rolf Carls
Strength
6 merchantmen
1 fleet oiler
14 escorts in relays

Operation Dervish (21–31 August 1941) was the first of the Arctic Convoys of the Second World War by which the Western Allies supplied material to the Soviet Union against Nazi Germany. Included in the convoy was the personnel and equipment of an RAF Wing, for the air defence of the Russian ports, several civilians and diplomatic missions.

The convoy sailed from Liverpool on 12 August 1941 and arrived at Archangelsk on 31 August 1941. There were no attempts by the Luftwaffe or the Kriegsmarine to intercept the convoy and neither side suffered casualties.

Co-incident with the Dervish convoy, civilians in the Svalbard archipelago were evacuated in Operation Gauntlet (25 August – 3 September 1941) and Dervish was followed by Operation Strength (30 August – 14 September 1941) to transport aircraft for No. 151 Wing RAF at Archangelsk; both operations succeeded.

Background[edit]

British–Soviet alliance[edit]

On 22 June 1941, the Soviet Union was invaded by Nazi Germany and its allies. That evening, Winston Churchill broadcast a promise of assistance to the USSR against the common enemy. On 7 July, Churchill wrote to Stalin and ordered the British ambassador in Moscow, Stafford Cripps, to begin discussions for a treaty of mutual assistance. On 12 July, an Anglo-Soviet Agreement was signed in Moscow, to fight together and not make a separate peace.[1] On the same day a Soviet commission met the Royal Navy and the RAF in London and it was decided to use the airfield at Vaenga (now Severomorsk) as a fighter base to defend ships unloading at the ports of Murmansk, Arkhangelsk and Polyarny.[2] The First Sea Lord, Admiral Dudley Pound considered such proposals unsound, "with the dice loaded against us in every direction".[3] When Arctic convoys passed by the north of Norway into the Barents Sea, they came well into range of German aircraft, U-boats and ships operating from bases in Norway and Finland. The ports of arrival, especially Murmansk, only about 15 mi (24 km) east of the front line were vulnerable to attack by the Luftwaffe.[2]

Lend-lease[edit]

Main articles: Anglo-Soviet Agreement and Lend-Lease
Russian map showing Arctic convoy routes from Britain and Iceland, past Norway to the Barents Sea and northern Russian ports

After Operation Barbarossa, the German invasion of the USSR, began on 22 June 1941, the UK and USSR signed an agreement in July that they would "render each other assistance and support of all kinds in the present war against Hitlerite Germany".[4] The USSR turned out to lack the ships and escorts and the British and Americans, who had made a commitment to "help with the delivery", undertook to deliver the supplies for want of an alternative. (In September, after the arrival of Dervish, the main Soviet need in 1941 was military equipment to replace losses because two large aircraft factories were being moved east from Leningrad and two more from Ukraine. It would take at least eight months to resume production, until when, aircraft output would fall from 80 to 30 aircraft per day. Britain and the US undertook to send 400 aircraft a month, at a ratio of three bombers to one fighter (later reversed), 500 tanks a month and 300 Bren gun carriers. The Anglo-Americans also undertook to send 42,000 long tons (43,000 t) of aluminium and 3, 862 machine tools, along with sundry raw materials, food and medical supplies.)[5]

Arctic route[edit]

Map showing the White Sea and the Gulf of Arkhangelsk

The transport of supplies to the USSR was more difficult than any of the other theatres of war. Limitations of geography, climate and the nature of sea transport were extremely difficult to overcome but until ports in the Persian Gulf and the overland rail route through Iran were improved, the Arctic route was the only feasible one, apart from the small amount of supplies being sent via ports in the Soviet Far East. The entrepôts of Murmansk and those in the White Sea had not been built for mass cargoes of military equipment.[6]

There were few cranes and none of them were capable of lifting heavy items. Rail links were inadequate, some berths not having rail connexions.[6][a] The gulf ports were iced from the end of November to the end of May. Further from the front line than Murmansk [30 mi (48 km) by the autumn of 1941] the Soviet authorities claimed that they could be kept open by ice-breakers but could only provide two of the eight to ten they promised and Stalin was bombed on 15 January 1942, leaving five British ships iced in until the spring.[6]

Arctic Ocean[edit]

Main article: Arctic Ocean
Diagram of the Arctic Ocean

Between Greenland and Norway are some of the most stormy waters of the world's oceans, 890 mi (1,440 km) of water under gales full of snow, sleet and hail.[8] The cold Arctic water was met by the Gulf Stream, warm water from the Gulf of Mexico, which became the North Atlantic Drift. Arriving at the south-west of England the drift moves between Scotland and Iceland; north of Norway the drift splits. One stream bears north of Bear Island to Svalbard and a southern stream follows the coast of Murmansk into the Barents Sea. The mingling of cold Arctic water and warmer water of higher salinity generates thick banks of fog for convoys to hide in but the waters drastically reduced the effectiveness of ASDIC as U-boats moved in waters of differing temperatures and density.[8]

In winter, polar ice can form as far south as 50 mi (80 km) off the North Cape and in summer it can recede to Svalbard. The area is in perpetual darkness in winter and permanent daylight in the summer and can make air reconnaissance almost impossible.[8] Around the North Cape and in the Barents Sea the sea temperature rarely rises about 4° Celsius and a man in the water will die unless rescued immediately.[8] The cold water and air makes spray freeze on the superstructure of ships, which has to be removed quickly to avoid the ship becoming top-heavy. Conditions in U-boats were, if anything, worse the boats having to submerge in warmer water to rid the superstructure of ice. Crewmen on watch were exposed to the elements, oil lost its viscosity, nuts froze and sheared off. Heaters in the hull were too demanding of current and could not be run continuously.[9]

Prelude[edit]

Plans[edit]

The Dervish convoy was part of a series of operations in the Arctic during August 1941. In July the British had conducted Operation EF, an attack on the ports of Kirkenes and Petsamo by carrier aircraft, while the fast minelayer Adventure had run to Archangelsk with a cargo of parachute mines. At the end of July a cruiser force commanded by Rear Admiral Philip Vian had investigated the Spitzbergen archipelago for signs of German activity and had destroyed a weather station on Hope Island.[10] In August a convoy of six ships loaded with war materiel was to sail to Archangelsk, together with a contingent of RAF personnel to prepare the way for Operation Strength, a plan to fly 48 Hurricane fighters from the aircraft carrier Argus to airfields in Russia in a similar manner to the Club Run operations in the Mediterranean. At the same time Vian was to return to Spitzbergen and evacuate the population in Operation Gauntlet.[11]

Ships[edit]

The convoy consisted of the merchant ships Lancastrian Prince, New Westminster City, Esneh, Trehata, the elderly (ex-Union Castle liner) SS Llanstephan Castle, the fleet oiler RFA Aldersdale and the Dutch freighter Alchiba.[12] The convoy carried wool, rubber and tin and 24 crated Hawker Hurricane fighter aircraft.[13] Captain John Dowding Royal Naval Reserve (RNR) was Convoy Commodore in Llanstephan Castle, which carried most of the 2,700 men of 151 Wing Royal Air Force (RAF), including fourteen pilots. There were several civilians, including Vernon Bartlett MP, the US newspaper reporter Wallace Carrol, the Polish expressionist painter and official British and Polish war artist Feliks Topolski, a Polish legation, a Czechoslovak commission and Charlotte Haldane, a noted feminist and member of the Communist Party of Great Britain, who lectured on Domestic life in Russia as part of an impromptu course laid on by the civilians.[14]

The convoy was protected by an ocean escort comprising the destroyer Electra and the Anti-submarine warfare trawlers Hamlet and Macbeth. The ocean escort was joined later by the destroyers Active and Impulsive and the trawler Ophelia. The escorts were supported in the first and second stages of the voyage by the anti-aircraft auxiliary ship Pozarica and the trawlers Celia, St. Cathan and Le Tiger. The second stage escorts were replaced in the third stage by the minesweepers Halcyon, Salamander and Harrier which had been posted to north Russia as a local escort force. The convoy was also accompanied by the cruiser Aurora, en route to join the force for Operation Gauntlet. The operations were supported by a Distant Cover Force from the Home Fleet, the carrier HMS Victorious and the cruisers Devonshire and Suffolk, with the destroyers Eclipse, Escapade and Inglefield.[12]

Luftflotte 5[edit]

Main article: Luftflotte 5
A Focke-Wulf Fw 200 Kondor of KG 40

In mid-1941, Luftflotte 5 (Air Fleet 5) had been re-organised for Operation Barbarossa with Luftgau Norwegen (Air Region Norway) headquartered in Oslo. Fliegerführer Stavanger (Air Commander Stavanger) was responsible for the centre and north of Norway, Jagdfliegerführer Norwegen (Fighter Leader Norway) commanded the fighter force and Fliegerführer Kerkenes (Oberst [colonel] Andreas Nielsen) in the far north had airfields at Kirkenes and Banak. The Air Fleet had 180 aircraft, sixty of which were reserved for operations on the Karelian Front against the Red Army. The distance from Banak to Archangelsk was 560 mi (900 km) and Fliegerführer Kerkenes had only ten Junkers Ju 88 bombers of Kampfgeschwader 30, thirty Junkers Ju 87 Stuka dive-bombers, ten Messerschmitt Bf 109 fighters of Jagdgeschwader 77, five Messerschmitt Bf 110 heavy fighters of Zerstörergeschwader 76, ten reconnaissance aircraft and an anti-aircraft battalion. Sixty aircraft were far from adequate in such a climate and terrain where "there is no favourable season for operations".[15]

Voyage[edit]

The convoy sailed for Scapa Flow in the Orkney Islands from Liverpool on 12 August 1941 and arrived on 16 August.[12] Another fifteen Hurricanes packed in crates were loaded on the other ships at Scapa Flow.[16] The ships departed from Scapa Flow on 17 August and the convoy reached Hvalfjord in Iceland on 20 August, departing for Russia the next day.[12] The Gauntlet force departed Scapa Flow on 19 August and rendezvoused with the cruiser Aurora, which had been sailing with the Dervish convoy. The Distant Covering Force sailed on 24 August, taking station near Bear Island (Bjørnøya) to cover all operations against surface attack by the German Navy.[17] The convoy sailed towards the Svalbard Archipelago and the midnight sun, to circle as far north around Norway as possible. The danger of Luftwaffe attacks on Murmansk led to the ships being diverted to Archangelsk, another 400 mi (640 km) to the east.[18]

The ships were escorted from the Kanin Noss promontory through the White Sea by the Soviet ships Sokrushitelny, Grozny, Kujbyshev and the Orfey-class destroyer Uritsky.[19] As Llanstephan Castle sailed upriver to dock, rifle shots were heard and a member of the crew was hit in the arm, the gunfire coming from people onshore, who mistook the British uniforms for German ones.[18] The Gauntlet force departed Spitzbergen on 3 August, returning to Scapa Flow on 10 September. The Strength force sailed on 30 August, as the Dervish convoy was arriving and reached the flying-off point on 7 September. This was accomplished and the force returned to port on 14 September.[11] The Distant Cover Force returned at the same time, after launching air attacks on targets in occupied Norway.[20]

Other operations[edit]

Operation Gauntlet[edit]

Main article: Operation Gauntlet
Norwegian population readying for evacuation from Longyearbyen

Operation Gauntlet was an Allied Combined Operation to land on the Spitzbergen archipelago, to evacuate Norwegian and Soviet civilians there and to destroy facilities to deny them to the Germans. A force of two cruisers and four destroyers, with the troopship Empress of Canada and a replenishment oiler left British waters on 19 August 1941, arriving at Spitzbergen on 25 August.[21] After evacuating Soviet coal miners at Barentsburg and Norwegians at Longyearbyen, the coal mining and shipping infrastructure, equipment and stores there were destroyed. The Allies also suppressed wireless stations on the archipelago, to prevent the Germans receiving weather reports.[22] The Allies departed the archipelago on 3 September having suffered no casualties, the local civilians were repatriated, several ships were taken as prizes and Bremse, a German gunnery training ship, was sunk on the return journey.[23]

Operation Strength[edit]

The old aircraft carrier Argus (launched in 1917) took part in Operation Strength (30 August – 14 September) with the heavy cruiser Shropshire and the destroyers Matabele, Punjabi and Somali, protected by the Dervish covering force.[24] Strength ferried pilots, their 24 Hurricanes and other personnel of 151 Wing RAF to Russia; the Hurricanes were flown off Argus direct to Vaenga airfield, near Murmansk. The ships reached the flying-off point safely due to the scarcity of Luftwaffe reconnaissance aircraft in the region.[16] Normal naval aircraft used a ramp at the end of the flight deck to help get into the air but the Hurricane undercarriage was not robust enough and the first two Hurricanes to take off were damaged. The rest of the aircraft avoided the ramp and the damaged Hurricanes crashed on landing at Vaenga.[25]

Aftermath[edit]

Dervish was followed by a regular series of convoys numbered like their Atlantic counterparts. The first homeward-bound convoy, QP 1 included the Dervish merchant ships and carrying Polish troops stranded in the USSR, left Archangelsk on 28 September 1941 and arrived at Scapa Flow on 9 October. The eleven ships of Convoy PQ 1, the first convoy of the PQ series, carrying twenty tanks, 193 fighter aircraft and other cargo, sailed from Iceland on 28 September, arriving at Archangelsk on 11 October after an uneventful trip.[26]

Commemoration[edit]

The operation is often remembered in both countries as an example of direct co-operation between of British Armed Forces and the Red Army. The British Prime Minister and Minister of Defence, Winston Churchill, said that the operation and the larger convoys were "the worst journey in the world".[27] Many veterans of the operation have since 2012 been awarded the Arctic Star for their service.[28] In August 2016, on the occasion of the 75th anniversary of the start of the Operation, Princess Anne visited Arkhangelsk to celebrate as a guest of Governor Igor Orlov.[29] The Princess gave a speech and met Russian and British veterans of the operation.[30] A Band of the Royal Marines performed alongside a military band from the Northern Fleet after a wreath laying ceremony.[31][32]

Dervish[edit]

Merchant ships[edit]

Merchant ships[12][b]
Name Flag GRT Notes
Aldersdale  Royal Navy 8,402 Replenishment oiler
Alchiba  Netherlands 4,427  
Esneh  United Kingdom 1,931  
Lancastrian Prince  United Kingdom 1,914  
Llanstephan Castle  United Kingdom 11,348 Convoy Commodore
New Westminster City  United Kingdom 4,747  
Trehata  United Kingdom 4,817  

Escorts[edit]

Escorts[12][c]
Name Flag Ship Type Notes
Active  Royal Navy Destroyer Ocean escort, 16–29 August
Aurora  Royal Navy Cruiser Cruiser cover, 16–18 August
Celia  Royal Navy M/S Trawler 1st and 2nd stage support, 12–21 August
Electra  Royal Navy Destroyer Ocean escort, 12–29 August
Halcyon  Royal Navy Minesweeper 3rd stage support, 20–31 August
Hamlet  Royal Navy M/S Trawler Ocean escort, 12–31 August
Harrier  Royal Navy Minesweeper 3rd stage support, 20–31 August
Impulsive  Royal Navy Destroyer Ocean escort, 16–29 August
Le Tiger  Royal Navy ASW Trawler 1st and 2nd stage support, 12–21 August
Macbeth  Royal Navy M/S Trawler Ocean escort, 12–31 August
Ophelia  Royal Navy ASW Trawler Ocean escort, 19–31 August
Pozarica  Royal Navy Anti-aircraft ship 1st and 2nd stage support, 12–21 August
St. Cathan  Royal Navy ASW Trawler 1st and 2nd stage support, 12–21 August
Salamander  Royal Navy Minesweeper 3rd stage support, 20–31 August

Distant covering force[edit]

The force sailed from Scapa Flow on 24 August and returned on 14 September.[24]

Distant Covering Force[24][d]
Name Flag Ship Type Notes
Devonshire  Royal Navy Cruiser  
Eclipse  Royal Navy Destroyer  
Escapade  Royal Navy Destroyer  
Inglefield  Royal Navy Destroyer  
Suffolk  Royal Navy Cruiser  
HMS Victorious  Royal Navy Aircraft carrier Flagship Rear Admiral Frederic Wake-Walker

Gauntlet[edit]

The ships sailed from the Clyde on 19 August and returned on 7 September.[33]

Operation Gauntlet[33][e]
Name Flag Ship Type Notes
Antelope  Royal Navy Destroyer
Anthony  Royal Navy Destroyer  
Aurora  Royal Navy Cruiser  
Empress of Canada  Royal Navy Troopship  
Icarus  Royal Navy Destroyer  
Nigeria  Royal Navy Cruiser Flagship, Rear-Admiral Philip Vian
Oligarch  Royal Navy oiler  

Operation Strength[edit]

The ships in this operation sailed from Scapa Flow on 30 August and returned on 14 September.[24]

Operation Strength[24][f]
Name Flag Ship type Notes
Argus  Royal Navy Aircraft carrier Transporting 24 Hawker Hurricane fighter aircraft of 151 Wing RAF to the USSR
Shropshire  Royal Navy Heavy cruiser
Matabele  Royal Navy Destroyer
Punjabi  Royal Navy Destroyer
Somali  Royal Navy Destroyer

Notes[edit]

  1. ^ It took six weeks to unload a 68 long tons (69 t) piece of machinery from a US ship, using a 35 long tons (36 t) crane to lift each end in turn, baulks of wood being jammed underneath each time, until the machinery had sixty lorry-loads of wood underneath.[7]
  2. ^ Details from Ruegg and Hague (1993) unless specified.[12]
  3. ^ Details from Ruegg and Hague (1993) unless specified.[12]
  4. ^ Details from Ruegg and Hague (1993) unless specified.[24]
  5. ^ Details from Ruegg and Hague (1993) unless specified.[33]
  6. ^ Details from Ruegg and Hague (1993) unless specified.[24]

Footnotes[edit]

  1. ^ Golley 1987, p. 59.
  2. ^ a b Richards & Saunders 1975, p. 78.
  3. ^ Woodman 2004, pp. 8–15.
  4. ^ Woodman 2004, p. 22.
  5. ^ Hancock & Gowing 1949, pp. 359–362.
  6. ^ a b c Behrens 1955, pp. 253–254.
  7. ^ Behrens 1955, p. 254.
  8. ^ a b c d Claasen 2001, pp. 195–197.
  9. ^ Paterson 2016, pp. 100–101.
  10. ^ Roskill 1957, pp. 485–486, 488.
  11. ^ a b Kemp 1993, p. 18.
  12. ^ a b c d e f g h Ruegg & Hague 1993, p. 20.
  13. ^ Rohwer & Hümmelchen 1992, p. 79.
  14. ^ Golley 1987, p. 89.
  15. ^ Claasen 2001, pp. 188–189.
  16. ^ a b Woodman 2004, pp. 36–37.
  17. ^ Stacey 1956, pp. 303–305.
  18. ^ a b Golley 1987, pp. 82, 85–90.
  19. ^ Rohwer & Hümmelchen 2005, p. 93.
  20. ^ Stacey 1956, p. 306; Roskill 1957, p. 489.
  21. ^ Stacey 1956, pp. 303–304.
  22. ^ Stacey 1956, pp. 304–306.
  23. ^ Kemp 1993, pp. 18–19.
  24. ^ a b c d e f g Ruegg & Hague 1993, p. 21.
  25. ^ Harkins 2013, p. 5.
  26. ^ Woodman 2004, pp. 42–44.
  27. ^ Russia honors first British Arctic convoy, 75 years on Dmitry Madorsky, 31 August 2016 Reuters (6 October 2019)
  28. ^ "Worst Journey in the World": Special Medal Awarded to Arctic Convoy Veterans Coilin O'Connor, 20 March 2013 Radio Liberty (6 October 2019)
  29. ^ UK's Princess Anne pays tribute to Arctic Convoys in Arkhangelsk Anna Chistyakova 1 Sept 2016 Russia Beyond (6 October 2019)
  30. ^ Britain's Princess Anne To Visit Arkhangelsk For WWII Commemoration Anon. 13 August 2016, Radio Liberty (6 October 2019)
  31. ^ Britain’s Princess Anne Travels to Russia to Commemorate the Bravery of WW2 Arctic Convoy Sailors Archived 28 June 2019 at the Wayback Machine George Winston, 16 September 2016: War History Online (6 October 2019)
  32. ^ Princess Anne visits Arkhangelsk Diplomacy Online. Embassy of the Russian Federation (6 October 2019)
  33. ^ a b c Ruegg & Hague 1993, pp. 20–21.

References[edit]

  • Behrens, C. B. A. (1955). Hancock, K. (ed.). Merchant Shipping and the Demands of War. History of the Second World War United Kingdom Civil Series. London: HMSO. OCLC 498039 – via Archive Foundation.
  • Claasen, A. R. A. (2001). Hitler's Northern War: The Luftwaffe's Ill-fated Campaign, 1940–1945. Lawrence, KS: University Press of Kansas. ISBN 0-7006-1050-2.
  • Golley, J. (1987). Hurricanes over Murmansk (1st ed.). Wellingborough: Patrick Stephens. ISBN 978-0-85059-832-2.
  • Hancock, W. K.; Gowing, M. M. (1949). Hancock, W. K. (ed.). British War Economy. History of the Second World War, United Kingdom Civil Series. London: HMSO. OCLC 630191560.
  • Harkins, H. (2013). Hurricane IIB Combat Log: 151 Wing RAF North Russia 1941. Glasgow: Centurion. ISBN 978-1-903630-46-4.
  • Kemp, Paul (1993). Convoy! Drama in Arctic Waters. London: Arms & Armour. ISBN 1-85409-130-1 – via Archive Foundation.
  • Paterson, Lawrence (2016). Steel and Ice: The U-Boat Battle in the Arctic and Black Sea 1941–45. Stroud: The History Press. ISBN 978-1-59114-258-4.
  • Richards, Denis; Saunders, H. St G. (1975) [1954]. Royal Air Force 1939–1945: The Fight Avails. History of the Second World War, Military Series. Vol. II (pbk. ed.). London: HMSO. ISBN 978-0-11-771593-6. Retrieved 6 October 2019.
  • Rohwer, J.; Hümmelchen, G. (1992). Chronology of the War at Sea 1939–1945 (2nd rev. exp. ed.). Annapolis, Maryland: Naval Institute Press. ISBN 978-1-55750-105-9.
  • Rohwer, Jürgen; Hümmelchen, Gerhard (2005) [1972]. Chronology of the War at Sea, 1939–1945: The Naval History of World War Two (3rd rev. ed.). London: Chatham. ISBN 978-1-86176-257-3.
  • Roskill, S. W. (1957) [1954]. Butler, J. R. M. (ed.). The War at Sea 1939–1945: The Defensive. History of the Second World War United Kingdom Military Series. Vol. I (4th impr. ed.). London: HMSO. OCLC 881709135. Retrieved 6 October 2019.
  • Ruegg, R.; Hague, A. (1993) [1992]. Convoys to Russia: Allied Convoys and Naval Surface Operations in Arctic Waters 1941–1945 (2nd rev. enl. ed.). Kendal: World Ship Society. ISBN 0-905617-66-5.
  • Stacey, C. P. (1956) [1955]. Six Years of War: The Army in Canada, Britain and the Pacific. Official History of the Canadian Army in the Second World War. Vol. I (online 2008, Dept. of National Defence, Directorate of History and Heritage ed.). Ottawa: Authority of the Minister of National Defence. OCLC 317352934. Archived from the original on 1 April 2019. Retrieved 6 October 2019.
  • Woodman, Richard (2004) [1994]. Arctic Convoys 1941–1945. London: John Murray. ISBN 978-0-7195-5752-1.

Further reading[edit]

  • Cain, Timothy J. (1976) [1959]. HMS Electra (repr. Futura, London ed.). London: Frederick Miller. ISBN 978-0-86007-330-7.
  • Humble, Richard (1971). Hitler's High Seas Fleet. Ballantine's Illustrated History of a Violent Century, Battle Book. Vol. 23. New York: Ballantine Books. OCLC 464061927.
  • Hutson, H. C. (2012). Arctic Interlude: Independent to North Russia (6th ed.). CreateSpace Independent Publishing. ISBN 978-1-4810-0668-2.
  • Schofield, Bernard (1964). The Russian Convoys. London: BT Batsford. OCLC 906102591 – via Archive Foundation.
  • Wragg, D. (2005). Sacrifice for Stalin: The Cost and Value of Arctic Convoys Re-assessed. Barnsley: Pen & Sword Maritime. ISBN 1-84415-357-6.
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