Yugoslavia and the Allies

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In 1941 when the Axis invaded Yugoslavia, King Peter II formed a Government in exile in London, and in January 1942 the royalist Draža Mihailović became the Minister of War with British backing. But by June or July 1943, British Prime Minister Winston Churchill had decided to withdraw support from Mihailović and the Chetniks he led, and support the Partisans headed by Josip Broz Tito. The main reason for the change was not the reports by Fitzroy Maclean or William Deakin, or as later alleged the influence of James Klugmann in Special Operations Executive (SOE) headquarters in Cairo or even Randolph Churchill, but the evidence of Ultra decrypts from the Government Code and Cipher School in Bletchley Park that Tito's Partisans were a "much more effective and reliable ally in the war against Germany".[1] Nor was it due to claims that the Chetniks were collaborating with the enemy, though there was some evidence from decrypts of collaboration with Italian and sometimes German forces.

Contact with Yugoslavia[edit]

Given the intensity of 'Operation Punishment' and quick collapse of Yugoslav defence, some SOE agents made their own way to Istanbul or the Middle East, while others followed the fleeing Yugoslav government all the way to Montenegrin coast.[2] Their plans to block the Danube and disrupt German oil and grain supplies from Romania by blowing up a large quantity of rock into the Kazan gorge, or sinking cement-laden barges at Greben narrows or the Sip canal mostly failed. In the end, the river was impassable for between three and five weeks without major impact on the enemy.[2]

At the same time, SOE and the British government lost contact with the agents on the ground and it was not until August 1941. when Mihailović's radio signals were picked up by the British naval monitoring station in Malta.[3] In the confusion of the initial reports, received via agents arriving overland to Istanbul, refugees, and Yugoslav Government-in-Exile (YGE) sources about the situation in the country, alleged persecutions and massacres, as well as pockets of resistance, British government had arranged for direct missions to the region.[4] They mostly consisted of British SOE agents, W/T operators and Yugoslav army officers and had a similar brief: "to discover what was happening in Yugoslavia and co-ordinate all forces of resistance there".[5]

Some of the most prominent missions are listed in table below.

Date Code Name Method Departure Landing Members Remarks
20/09/1941 Operation Bullseye [6] Submarine (HMS Triumph) Malta Petrovac (Montenegro) Col D.T. Bill Hudson

Maj Mirko Lalatović

Maj Zaharije Ostojić

Sgt Veljko Dragičević (W/T)

Due to issues with his radio, Hudson's broadcasts stopped on 19th Oct 1941. but resumed in May 1942.[7]
26/01/1942 Operation Henna[8] Submarine (HMS Thorn) Alexandria Island of Mljet (Croatia) Lt(R) Stanislav Rapotec

Sgt Stevan Sinko (W/T)

Aimed to report on "Slovene patriotic organizations". Sinko was sick and left on Mljet, while Rapotec travelled widely meeting various resistance groups and leaders before surfacing in Turkey on 2 July 1942.[9]
04/02/1942 Operation Hydra[8] Submarine (HMS Thorn) Alexandria Petrovac (Montenegro) Maj Terence Atherton

Lt R Nedeljković

Sgt Patrick O'Donovan (W/T)

Aimed to report on situation in Montenegro. Met with Tito and the partisan HQ in Foča on 19th Mar 1942. but left on 16 April 1942 to find Mihailović and Bill Hudson.[10] Atherton sent a letter to Mihailovic on 22nd Apr 1942. confirming that he was alive, but both him and O'Donovan were killed shortly afterwards by Spasoje Dakic.[11]
04/02/1942 Operation Disclaim[8] Airborne Sokolac (Bosnia) Maj Cavan Elliot

2Lt Pavle Crnjanski

Sgt Petar Miljković

Sgt William Chapman (W/T)

Almost immediately picked up by Domobrans and handed over to the Germans in Sarajevo
28-29/04/1942 Airborne Between Berane and Novi Pazar (Montenegro) Sgt Milisav Bakić

Sgt Milisav Semiz

Sent without the knowledge or agreement of the YGE. Arrested by the local quisling militia and given to the Germans.[8]
Aug 1942 Operation Bullseye (ext.) Airborne Sinjajevina (Montenegro) Lieut Lofts

Two W/T operators

Signals party, arrived at Mihailović's HQ in order to establish a war station, enabling Bill Bailey to co-ordinate all SOE activities in the region (including Albania, Hungary, Romania and Bulgaria) and help Hudson and Mihailović have more secure and regular links with Cairo.[12][13]
Sep 1942 Airborne Capt (RYAF) Nedeljko Plećaš Parachuted with radio sets for Mihailović and Trifunović-Birčanin, initially to link them to Cairo but later to Istanbul and finally to Algiers (in May 1944) to evade the British SOE.[14]
25/12/1942 Operation Bullseye (ext.) Airborne Gornje Lipovo (Montenegro) Col S.W. (Bill) Bailey

W/T operator

Head of SOE Balkan section. Joined D.T. Bill Hudson at Mihailović's HQ.[15] To report on the military value of the chetnik movement as a whole and to persuade Mihailović to undertake active sabotage. Study its political intentions and propose how British policy of creating a united resistance front could be implemented.[16]
mid-Feb 1943 Airborne Gornje Lipovo (Montenegro) Maj Kenneth Greenlees Joined Bailey and maintained routine contact with Mihailović when his relationship with Bailey deteriorated.[17]
20-21/04/1943 Hoathley 1[18] Airborne Near Šekovići (Eastern Bosnia) Stevan Serdar

George Diklić

Milan Družić

20-21/04/1943

and

18-19/05/1943

Fungus[18] Airborne Near Brinje (Croatia) Alexander Simić-Stevens

Petar Erdeljac

Paul Pavlić

Picked up by local peasants and passed onto partisan HQ for Croatia. Erdeljac was recognised by his old comrade from Spain, Ivan Rukavina, while Simić-Stevens had to be vetted by Vladimir Bakarić.
18-19/05/1943 Fungus (ext.)[18] Airborne Maj William Jones

Capt Hunter

Sgt Ron Jephson

The first 'uniformed' mission to partisans - sabotage team to disrupt railway lines used to transport Axis war material and petrol.
27/05/1943 Operation Typical[19] Airborne Derna (Libya) Crno Jezero (Montenegro) Col William Deakin

Capt William F Stuart

Sgt Walter Wroughton (W/T)

Sgt Peretz 'Rose' Rosenberg (W/T)

Canadian-Yugoslav Ivan ('John') Starčević (Translator)

Sgt John Campbell (RM - bodyguard)

The first British mission fully assigned to Yugoslav partisans HQ and Marshall Tito.
15/08/1943 Operation Typical (ext.)[20] Airborne Petrovo Polje (Bosnia) Flight-Lieut Kenneth Syers

Maj Ian Mackenzie (RAMC)

Fl-Lieut Syers (RAF) was a SIS officer, replacement for Capt W F Stuart who was killed on 09/06/1943 at Sutjeska. He had worked for the British Council in pre-war Yugoslavia.

Maj Mackenzie was an experienced surgeon at the Royal Army Medical Corps. His operations on the wounded while under constant enemy activity earned him and the British mission high moral credit.[21]

21/08/1943 Operation Typical (ext.) [21] Airborne Petrovo Polje (Bosnia) Capt Melvin O Benson (OSS) Melvin (Benny) Benson was the first American representative assigned to Yugoslav partisans HQ and Marshall Tito. He was under Deakin's command and shared British radio communications infrastructure. He stayed in the region for four months.[22]
Sep 1943 Macmis[23] Airborne Bizerta (Tunisia) Mrkonjić-Grad (Bosnia) BGen Fitzroy Maclean

Maj Vivian Street

Maj Linn "Slim" Farish

John Henniker-Major

Peter Moore

Donald Knight

Mike Parker

Gordon Alston

Robin Whetherly

Sgt Duncan

The first British mission to Yugoslav partisans with full authorisation and personal message from Winston Churchill [24][25]
Nov 1943 Mulligatawny Mission Airborne East of Lake Ohrid (Macedonia) Maj Mostyn Davies

Maj Frank Thompson (later)

SOE mission attempting to get in touch with the Bulgarian partisans. Both Davies and Thompson were to perish in the attempt to organise Bulgarian resistance.[26]
28/11/1943 Monkeywrench Mission Airborne Eastern Serbia Maj Dugmore SOE mission to Yugoslav partisans, sent to prepare the area for the British break with Mihailović.[27]

Limited resources meant that in 1942 support for the Chetniks was limited to "words rather than deeds". The SOE, charged with fostering resistance movements, initially sent Captain D. T. Hudson as part of Operation Bullseye, to contact all resistance groups in September 1941. Hudson's reports on the meetings between Mihailović and Tito (and their staffs) were not encouraging, and he sent warnings that the communist Partisans suspected that Mihailović was collaborating with the government of Milan Nedić in Serbia. Contacts with both groups were severed by the first Axis winter offensive, but decrypts of German signals showed that the Chetniks were collaborating with the Italians. This collaboration was based on an old friendship of Serbs and Italians in Dalmatia going back to the times of the Austrian rule.[28]

In June 1942 a report by Major General Francis Davidson, Director of Military Intelligence to Churchill, described the Partisans as "extreme elements and brigands". British Military Intelligence wanted to maintain support for Mihailović at the time that they were watching the progress of the German Operation Weiss against the Partisans, though they started having doubts by March 1943. Colonel Bateman in the Directorate of Military Operations also recommended supporting the "active and vigorous Partisans" rather than the "dormant and sluggish Chetniks."[29]

An assessment by Major David Talbot Rice of MI3b in September 1943 confirmed that there had only been isolated anti-German activity by Mihailović and "the heroes of the hour are undoubtedly the Partisans". He recommended that Mihailović should be told to destroy German lines of communication in Serbia, otherwise Tito would be the sole recipient of British aid which they were at long last in a position to deliver. The Signals intelligence had completely changed the view of Talbot Rice and MI3b in six months.[30]

When Mihailović was perceived as less effective than the communist Partisans, missions were sent to the Partisans. One of the first of these missions, codenamed "Fungus", was dropped "blind" in the area of Dreznica and Brinje, north west of Senj on the Croatian Adriatic coast, on the night of April 20/21 1943 by a B24 Liberator of No. 148 Squadron RAF, operating from Derna The mission consisted of two Canadian emigrees (Petar Erdeljac and Pavle Pavlic), and Corporal Alexander Simic (Simitch Stevens) of the Royal Pioneer Corps. They were found by the partizans and taken to the Croatian Partizan HQ at Sisane Polje, where Erdeljac and Pavlic were recognized by Ivan Rukovina, the Commander of the Croatian HQ, who had fought with them in the International Brigades in Spain. Alexander Simic was interrogated at length by Dr Vladimir Bakaric, the Political Commissaar (who subsequently became President of Croatia) before being allowed to establish radio contact with SOE headquarters in Cairo and arrange the subsequent missions of Major William Jones to join Simic at the Croatian HQ and that of Captain Bill Deakin to Tito's Headquarters in May 1943.

He was joined the following September by Brigadier Fitzroy Maclean, an SAS officer and also a Conservative Member of Parliament and former diplomat, with good language skills. Maclean subsequently sent a "blockbuster report" to Foreign Secretary Anthony Eden, recommending that Britain should transfer support to Tito and sever links with Mihailović. In 1943 the SOE in England and the Foreign Office wanted to continue support for Mihailović, although as these organisations had only limited access to decrypts they were not so well-informed on the situation there. The SOE headquarters in Cairo (which was frequently at odds with the London headquarters), MI6, the Directorates of Military Intelligence and Operations, the Chiefs of Staff and ultimately Churchill himself, wanted to switch support to Tito.[31]

Churchill's sources[edit]

Churchill's main source was the intelligence decrypts from Bletchley Park which he saw "raw", as well as intelligence reports and digests. After receiving a signals intelligence digest in July 1943 he wrote that "it gave a full account of the marvellous resistance by the followers of Tito and the powerful cold-blooded manoeuvres of Mihailović in Serbia."[32] Churchill announced his decision to support Tito to Soviet leader Joseph Stalin (much to his surprise) at the Tehran Conference in November 1943, and publicly in an address to Parliament on 22 February 1944. This address referred to reports from Deakin and Maclean for justification, as the Ultra decryptions from Bletchley Park were secret even after the war[33]

Fitzroy Maclean discussed Yugoslavia with Churchill in Cairo after the Tehran Conference. Maclean reported that "…the Partisans, whether we helped them or not, would be the decisive political factor in Jugoslavia after the war and, secondly that Tito and the other leaders of the movement were openly and avowedly Communist and that the system which they would establish would inevitably be on Soviet lines and, in all probability, strongly oriented towards the Soviet Union."[34] Churchill said that as neither of them intended to live there after the war: "… the less you and I worry about the form of Government they set up, the better. That is for them to decide. What interests us is, which of them is doing most harm to the Germans." However, Maclean had also noticed Tito's "independence of mind" and wondered whether Tito might evolve into something more than a Soviet puppet.[35]

While in England in the spring of 1944, Maclean discussed Yugoslavia with some of the British officers who had been attached to General Mihailović's Headquarters. One of the meetings was at Chequers and was presided over by Churchill himself. "It was common ground that the Cetniks, though in the main well disposed towards Great Britain, were militarily less effective with the communist Partisans and that some of Mihailović’s subordinates had undoubtedly reached accommodation with the enemy." And some who knew him best "while liking and respecting him as a man, had little opinion of Mihailović as a leader", though the Chetnik detachments in Serbia at least could be a significant force with "new and more determined leadership and with better discipline."[36] Maclean was also asked to Buckingham Palace to brief King George VI on the Jugoslav situation. He found him as well-informed on the situation as anyone else he had met back in England, and said he "took an entirely realistic view of it."[37]

British Intelligence sources[edit]

Most of the Signals intelligence obtained by Bletchley Park on the Balkans was initially from Luftwaffe morse code traffic encoded by Enigma; initially the general Luftwaffe Red key, then various German Army keys. They also decrypted various teleprinter links for high-level traffic: Fish (Vienna-Athens) then Codfish (Straussberg-Salonika), plus medium and low grade hand cyphers.[38] Abwehr, Sicherheitsdienst and railway communications were intercepted and decrypted, providing evidence of resistance activities.[39] For German policy on Yugoslavia, communications to Tokyo from the Japanese Ambassador, General Oshima Hiroshi, were also useful. With the primitive communications infrastructure and the disruption of land communications, the German forces in Yugoslavia relied heavily on radio communications which, unknown to themselves was insecure, so that a 1945 comment was that "never in the field of Signals intelligence has so much been decrypted about so little."[40]

While the volume of messages was not great, Bletchley Park also intercepted messages from Tito and from the separate Slovene Communist Party to Georgi Dimitrov, the Secretary-General of the Comintern in Moscow. These messages to Dimitrov continued even after the Comintern was officially dissolved in June 1943.[40]

The volume of Enigma decrypts from the Soviet Fronts and the Balkans declined substantially from the summer of 1944, but this was more than offset for the Soviet Fronts by success with Fish links.[41]

Discovery of collaboration[edit]

During Operation Weiss against the Partisans in 1943, the Italian forces used Italian-officered Chetnik units against the communist Partisans despite German objections. Consequently, the German Operation Schwartz against the Chetniks and Partisans was kept secret from the Italians. Pavle Djurisić, one of Mihailović’s principal commanders, fell out with Mihailović as he wished to join the Germans against the Partisans, which Mihailović refused to contemplate. Both Axis operations were followed by Bletchley Park in decrypts from the Abwehr (German military intelligence). A decrypted report from General Alexander Löhr, the commander in chief of the German Army Group E in the Balkans, reported on 22 June that 583 German soldiers and 7,489 Partisans had been killed, with the probability that the Partisans had lost another 4,000 men. Chetnik losses were put at 17, with nearly 4,000 taken prisoner. The contrast between the two resistance movements was stark.[42] However, the decrypts, "far from providing evidence of Cetnik-German collaboration, continued to leave no doubt that at least at the highest level the Germans remained set on Mihailović's destruction. In July Hitler had suggested that the C-in-C South East [Löhr] should put a higher price on the heads of Mihailović and Tito."[43]

The most significant report of Chetnik collaboration was the text of a treaty between Lukačević, one of Mihailović’s principal commanders, and the German Commander South East in September and October 1943, In the treaty, which was copied to Churchill, Lukačević agreed to a cessation of hostilities in his area of southern Serbia and joint action against the communist Partisans.[44]

British missions[edit]

It was indeed all too clear to everyone of us who served with the partisans that they had existed in very concrete and combatant form before we had ever appeared upon the scene—and even, in the days when we were supplying the chetniks, in spite of our mistaken efforts—and that they would have existed, and probably have triumphed, whatever course we had chosen to take.[45]

Deakin's mission to the Partisans was called Operation Typical, and it represented the British General Headquarters in the Middle East.[46] The first parachuted supplies dropped to the Partisans had a very marked propaganda effect despite some bizarre episodes, e.g. a planeload of Atrobin for treating malaria, and a supply of badly needed boots, but all for the left foot.[47] In May 1943, a signal from Cairo ordered that medical supplies, which had been loaded onto a Handley Page Halifax at Derna were to be left behind, as their despatch would infringe British obligations to the Royal Yugoslav government. The plane's crew complied, but loaded all the military items, e.g., boots, clothing, guns and ammunition, that they could loot at the airfield onto the aircraft.[48]

Deakin had urged American representation on the mission, and on 21 August 1943 Captain Melvin O. (Benny) Benson of the Office of Strategic Services (OSS) arrived, remaining in Yugoslavia for four months. Benson noted in his report "the giving of credit to the Cetniks for Partisan victories and otherwise referring to them as Patriots, in an attempt to include the Cetniks with the Partisans."[49] The crediting of Partisan attacks to Chetniks was also being reported on the BBC.[50] Captain Benson was later replaced by Major Linn (Slim) Farish [51]

The sending of the Maclean mission on 17 September 1943 placed the relations between Tito and the British on a more formal and senior level. Fitzroy Maclean was the personal representative of the Prime Minister, and his arrival marked implicitly the de facto recognition of the Yugoslav National Liberation Army, as the Partisans were formally known.[52]

Maclean wondered whether officials in Cairo "quite realised the difficulties of travel in German-occupied Europe", when he was told in an official signal that he was to go to Cairo immediately but that the Partisan delegation could follow later if required... (it turned out that the British delegation was returning from the conference at Teheran via Cairo).[53] While away down the coast Maclean was amazed to receive a garbled message from Cairo, with a clear sentence "King now in Cairo, Will be dropped to you at first opportunity." He thought that as part of London's gradual rapprochement policy between King Peter of Yugoslavia and the Partisans, the King was to be "dropped headlong into the seething centre of the Jugoslav cauldron." Later he was told that the message referred to their new signals officer, whose surname was King.[54]

When the Italians surrendered the mission received a signal from the British General Headquarters in the Mediterranean regarding the Italian forces, which assumed that "the British mission attached to Tito’s headquarters was in some queer fashion in operational command of operational ‘guerrilla’ units." Similar orders were sent to Colonel Bailey at Mihailović’s headquarters and to the commanders of British missions in Greece and Albania, and the episode revealed "the extent to which our mission had not succeeded in conveying to our superiors the reality of the situation in Partisan-held territory."[55]

Switching support to the Partisans[edit]

The fact remains that the decision to send liaison officers and military stores to the partisans was one which the Foreign Office manifestly disliked; and it is common knowledge that this decision was obtained only after the military authorities (then in Cairo) had demonstrated, from information which could not be denied or ignored, that the partisan war effort was overwhelmingly greater than that of the chetniks.[56]

The change in Allied support in Yugoslavia from the Chetniks to the Partisans in 1943 was because they were a more effective ally. The public justification at the time was the reports from Maclean and Deakin; the real source was the signals intelligence decrypts, but they were secret at the time and remained so until the 1970s when the work of Bletchley Park was made public. The change was driven by Churchill and (British) Army Intelligence, but was not due to any supposed influence from Randolph Churchill or James Klugman.

From the beginning of the war in south-eastern Europe, there were clear ideological differences between largely conservative British establishment (government, senior military officers and civil servants, and the leadership of SOE) and mainly left-wing resistance movements on the ground. The establishment had obligations towards kings and governments in exile whom it was committed to restoring to throne and power. The resistance fighters while happy to take up arms against the foreign invaders, often suffered from crudely militaristic tyrannies imposed by those same reactionary kings and governments throughout 1920s and 1930s, and were unwilling to fight for their restoration to power.[57]

Churchill's son Randolph was on one of the missions to Yugoslavia. Evelyn Waugh accompanied Randolph Churchill, and Waugh put in a report about Tito's persecution of the clergy, which was "buried" by Foreign Secretary Anthony Eden. No evidence is given for the suggestion made in the article on Draža Mihailović that Randolph Churchill privately influenced his father to support Tito, and in any case he was recruited by Maclean for his mission after the Teheran Conference, when the decision to support Tito had already been made.[58]

James Klugmann was a Communist and was undoubtedly a Soviet intelligence agent and linked to the Cambridge Five. He joined the Yugoslav section of SOE Cairo in 1942, where he advocated and lobbied for Tito. But it was stated that "Whatever lobbying may have been taking place in Cairo, it would have been the overwhelming evidence of the Bletchley Park decrypts, Churchill's favoured source of intelligence, which persuaded Britain's wartime leader that Tito and his Partisans were a much more effective, and reliable, ally in the war against Germany."[1]

Captain Bill Deakin, who led the first military mission in 1943 and was caught up in the Battle of the Sutjeska (hence the title of his book) had been Churchill’s researcher and librarian in the thirties.

American missions[edit]

The relationship between the British and American intelligence and special operations services was complex. Under the terms of 'London Agreement' signed in June 1942. all Office of Strategic Services (OSS) missions in Europe were under the SOE command. Similarly, the US authorities regarded Yugoslavia as a British responsibility. However, SOE still had concerns with the American post-war hegemony of big business in the Balkans. Consequently, direct contacts between the YGE and the US representatives was monitored and discouraged. This included King Peter's request in 1942, for the Americans to supply long range aircraft by which the Yugoslavs themselves could deliver arms to their resistance movement[59]

Soviet missions[edit]

Until mid-1942, Soviet official position and propaganda followed the British model of supporting the YGE, with whom it had re-established the diplomatic relations, and Mihailović as its legitimate representative. Although in direct contact with Tito's partisans via the Comintern, they were reluctant to encourage the revolutionary drive for fear of antagonizing the Western Allies on whose aid Soviet Union depended for survival.[60] The first official Soviet mission led by General Korneyev (Korneev) arrived on 23rd Feb 1944.[61]

Allied bombings[edit]

The United States Army Air Force (USAAF) and Royal Air Force (RAF) bombed many Yugoslav cities and towns during the Axis occupation. These attacks included intensive air support for Partisan operations in May–June 1944, and a bombing campaign against transport infrastructure in September 1944 as the Wehrmacht retreated from the Balkans. This latter operation was known as Operation Ratweek.

Aftermath[edit]

When George Musulin organized the 1944 final rescue of 500 American airmen called Operation Halyard, Draža Mihailović sent a political mission to Bari, Italy aboard an American plane. The arrival of Pribićević (now former President of the Independent Democratic Party of the Kingdom of Yugoslavia), Dr. Vladimir Belajčić (former Justice of the Superior Court of the Kingdom of Yugoslavia), Ivan Kovač (a Chetnik representative), and Major Zvonko Vučković (one of the principal Chetnik commanders) caused the British concern since they had already chosen who to back. At the Bari stopover, Ivan Šubašić, who signed the Treaty of Vis, also known as the Tito-Šubašić Agreement, earlier that year, met with the members of Mihailović's political mission but the Prime Minister-in-exile said nothing about the agreement he signed months earlier compromising the Kingdom of Yugoslavia. Pribićević and his team remained in the West after the war ended, like thousands of other soldiers who managed to escape.

References[edit]

  1. ^ a b Cripps, p.238; introduction
  2. ^ a b Williams, p.36
  3. ^ Williams, p.45
  4. ^ Williams, pp.39-44
  5. ^ Williams, p56
  6. ^ Williams, pp.53-59
  7. ^ Williams, p. 64
  8. ^ a b c d Williams, p.65
  9. ^ Williams, p.69
  10. ^ Williams, p. 67
  11. ^ Deakin, pp.172-175
  12. ^ Williams, pp.91-93
  13. ^ Deakin, p. 150
  14. ^ Williams, p. 77
  15. ^ Williams, p. 91
  16. ^ Deakin, p. 177
  17. ^ Deakin, p.182
  18. ^ a b c Williams, pp. 134-146
  19. ^ Deakin, pp. 216-217
  20. ^ Williams, p. 146
  21. ^ a b Deakin, p. 109
  22. ^ Deakin, p. 111
  23. ^ Williams, p.220
  24. ^ Maclean, pp. 280-281
  25. ^ Maclean, pp. 294-305
  26. ^ Williams, p. 178
  27. ^ Williams, p. 195
  28. ^ Hinsley, pp.137-138
  29. ^ Cripps, pp.239-250
  30. ^ Cripps, p.260
  31. ^ Cripps, pp.239-244
  32. ^ Deakin p. 227
  33. ^ Cripps, pp.256-263
  34. ^ Maclean pp. 402-403
  35. ^ Maclean pp. 340-341
  36. ^ Maclean p. 448
  37. ^ Maclean p. 449
  38. ^ Hinsley, pp.501-503
  39. ^ Cripps, John (2011). "Chapter 14: Mihailović or Tito: How the Codebreakers Helped Churchill Choose". In Erskine, Ralph; Smith, Michael. The Bletchley Park Codebreakers. Biteback Publishing. pp. 217–239. ISBN 978-1849540780.  (Updated and extended version of Action This Day: From Breaking of the Enigma Code to the Birth of the Modern Computer Bantam Press 2001)
  40. ^ a b Cripps, pp.240-242
  41. ^ British Intelligence in the Second World War Volume 3, Part 2: Its Influence on Strategy and Operations, by F. H. Hinsley et al. (1988, HMSO) ISBN 0-11-630940-7 pp.850-851
  42. ^ Cripps, pp.251-254
  43. ^ Hinsley, pp.150-151
  44. ^ Cripps, p.261
  45. ^ Basil Davidson: PARTISAN PICTURE
  46. ^ Deakin p. 1
  47. ^ Deakin p. 81
  48. ^ Deakin p. 222
  49. ^ Deakin pp. 110-111
  50. ^ Deakin p. 78
  51. ^ Deakin p. 244
  52. ^ Deakin p. 242
  53. ^ Maclean p 385
  54. ^ Maclean pp. 355,381
  55. ^ Deakin pp. 114-5
  56. ^ Basil Davidson: PARTISAN PICTURE
  57. ^ Davidson, pp.97-99
  58. ^ Maclean p. 407
  59. ^ Williams pp. 79-80
  60. ^ Williams pp. 82-83
  61. ^ Williams p. 220

Sources[edit]