The Secret War: Spies, Codes and Guerrillas 1939–1945

The Royal Navy’s Commander Geoffrey Colpoys was responsible for delivering to Downing Street each day at 1 p.m. a report from the Special Invasion Warning Committee, which for most of the autumn took it for granted that a German assault was imminent, and concerned itself chiefly with the timing. The Joint Intelligence Committee, chaired by the Foreign Office’s Victor ‘Bill’ Cavendish-Bentinck, only once sounded the alarm to suggest that invasion was imminent, on 7 September, when, as Bentinck himself noted sardonically later, he himself was briefly absent and the army’s somewhat unstable director of intelligence – the same man who advocated inciting the Wehrmacht to land – temporarily held the chair. Churchill himself was always sceptical about an invasion, but he deemed it politically imperative to sustain the British people’s belief in the threat not only in 1940, but throughout the following year also, to promote their vigilance and sense of purpose. On 31 July Sir Alexander Cadogan expressed his own conviction that the Germans would not come, but would instead thrust at Gibraltar and Egypt, then added, ‘our “intelligence” gives nothing to corroborate this theory. But then they’re awfully bad.’ Nowhere in the world were British agents providing information of much assistance to the war effort. The British C-in-C in Singapore, Air-Marshal Sir Robert Brooke-Popham, wrote in frustration: ‘Little or no reliance is placed upon MI6 information by any authorities here and little valuable information appears to be obtained.’ The same was true nearer home.

For many months after the German occupation of Western Europe, the only nation still able to exploit secret sources on a large scale was the neutral Soviet Union, through its networks in Belgium, Germany and Switzerland. In those days its agents did not even need to trouble with wireless: they simply passed reports to their nearest Soviet diplomatic mission. In May 1940 the GRU’s Leopold Trepper moved from Brussels to Paris, taking with him his mistress, the exotically named Georgie de Winter, a twenty-year-old American, and leaving his deputy Anatoli Gourevitch to arrange the Trepper family’s return to Moscow. Gourevitch’s own personal affairs were scarcely uncomplicated. Under his cover as a ‘Uruguayan businessman’ he had a succession of girlfriends, but felt obliged to break off relations with the prettiest when she revealed that her father knew South America well. ‘In other circumstances,’ he wrote wistfully, ‘I could probably have loved her, but such good fortune is denied to a secret agent.’ Thereafter, however, he formed a friendship with a neighbouring family named Barcza, whose elderly Hungarian husband was married to Margaret, a much younger Belgian blonde with an eight-year-old son. Following her husband’s sudden death, Gourevitch began an intense affair with her. Mikhail Makarov, the other GRU career officer in Belgium, was also leading what Gourevitch described primly as ‘an excessively dissipated life’, in which prostitutes played a conspicuous role.

The German invasion of Belgium gave Gourevitch some bad moments: Brussels police arrested his supposed English friend and language teacher, who turned out to be an Abwehr agent; the man was promptly liberated when his compatriots overran the capital. The GRU network’s cover company ‘Au Roi’ collapsed when its Jewish frontmen fled and the business was sequestered. Moscow ordered Gourevitch to take over control of the Belgian operation. He entered Margaret Barcza on Centre’s books – allegedly without her knowledge – as a source unimaginatively codenamed ‘the Blonde’. The most believable aspect of his own later account of the whole saga is its emphasis on the rickety, rackety nature of a spy ring that history – especially Soviet history – has dignified as one of the great secret operations of all time. Gourevitch asserted that Leopold Trepper’s much-vaunted intelligence network in France and Belgium ‘was composed almost entirely of his old Palestinian friends’, and provided Moscow with no usable intelligence about Germany’s descents on Poland, Scandinavia or Western Europe. It seems unlikely that the Russians learned much more from its activities during the year that followed than Churchill and his generals gleaned from their morning papers.

In the absence of serious British military operations save in North Africa, secret war became a massive growth activity, impelled by the prime minister himself. Special Operations Executive was created in July 1940, to ‘set Europe ablaze’, while the armed forces spawned commandos, paratroopers and a string of ‘private armies’, notably in the Middle East. New recruits of all kinds flooded into Broadway, some of them exotic. ‘Writers of thrillers,’ wrote the supremely cynical Malcolm Muggeridge, ‘tend to gravitate to the secret service as surely as the mentally unstable become psychiatrists, or the impotent pornographers.’ Thus was Graham Greene dispatched to Freetown, Sierra Leone, Muggeridge himself – a veteran foreign correspondent – to Lourenço Marques, in Portuguese Mozambique, and the journalist Kim Philby welcomed into Broadway. It became a source of dismay to career intelligence officers, protective of MI6’s reputation, that its wartime recruits who later commanded most public attention were all either mavericks or traitors.

Lacking its own agents on the Continent, Broadway turned to the European exile governments in London for assistance in identifying sources. The Poles began to build impressive networks in their own country, though they suffered grievously from the fact – then of course unknown to them – that the Germans read the ciphers in which they communicated with their agents. František Moravec and his Czech group achieved formal recognition as the intelligence arm of their government; MI6 provided them with wireless facilities and documents. The Czechs established a new base in three little adjoining suburban houses in Rosendale Road, West Dulwich, until these were destroyed by the Luftwaffe, then late in 1940 moved to a new building in Bayswater. MI6 did not, however, give them money. Moravec, after spending the last of the cash he had brought out of Prague, was obliged to negotiate a loan of £50,000, to pay his network’s outgoings of £3,000 a month. For some time he continued to receive East European material via Zürich – Captain Karel Sedlacek had served as Moravec’s station chief there since 1934, under cover as a newspaper correspondent; since he lacked any literary gifts he was obliged to pay a ghost to write copy in his name. The Abwehr’s Paul Thummel used the Czech officer as his link to London; when he was arrested by the Gestapo in March 1942, Moravec’s little group ran out of sources.

The British enjoyed one immense piece of good fortune following their eviction from the Continent: nowhere did the Germans capture people or documents that betrayed Allied progress in cracking Enigma. Between 1940 and 1944 many Frenchmen, including hundreds of thousands of servants of the Vichy puppet regime, collaborated with their occupiers. But Vichy’s military intelligence officers, and several Poles attached to them who were privy to the pioneering Enigma codebreaking operation, revealed nothing even later in the war, when they were exposed to enemy interrogation. The capacious nets cast across Europe by the Nazis focused overwhelmingly on hunting dissenters, not machines. In the early years of occupation, when most people in the conquered societies acquiesced in their fate, Berlin’s spies and policemen uncovered little to ruffle their masters’ complacency, and mercifully nothing that caused them to doubt the security of their own communications.

In the winter of 1940–41, none of the principal belligerents knew much more about each other’s affairs than they learned from studying the international press and watching such movements as they could see of the rival armies, navies and air fleets. Most of the successful codebreaking that was taking place was being done by the Germans, and especially by the Kriegsmarine’s B-Dienst. The British lacked power to accomplish anything save the feeding of their own people. Hitler prepared to launch the most dramatic and ambitious lunge of his career, the assault on the Soviet Union, an act that could only have been undertaken by a man either bereft of accurate intelligence about the economic strength of his intended victim, or recklessly indifferent to it.

2 SHADOWING CANARIS

The Germans had made themselves masters of Europe, and shown the Wehrmacht to be the most formidable fighting force in the world. By contrast, whatever the limitations of the British and other Allied intelligence services, those of Hitler’s Abwehr were incomparably worse. In the summer of 1940 the chiefs of the Nazis’ information-gathering machine toyed with a scheme to plant an agent on a wrecked ship off the English south coast, though they never came up with a credible notion of what such a hapless castaway might achieve there. They also discussed landing agents in Kent, who would be invited to scale the white cliffs, a plan that was frustrated by a shortage of spies with mountaineering skills. Meanwhile the Luftwaffe’s intelligence department misjudged every aspect of the Battle of Britain, from respective aircraft strengths and losses to target selection. In September 1940, following the interrogations of the first enemy spies landed in Britain, Kenneth Strong of War Office intelligence professed himself baffled. He could not reconcile his lifelong respect for German efficiency with the risible management of the Nazis’ espionage activities.

The Abwehr bungled the selection, training, briefing and equipment of agents for service abroad; seldom were they even provided with decent forged passports. It is hard to distinguish between reality and fantasy in the doings of its operational section, Abwehr II, because its war diary was compiled to impress higher authority, and thus included reports from agents who never existed, about operations that never took place. Its chief, Admiral Wilhelm Canaris, who was regarded for decades after the war as an important personality and even as a hero of the Resistance to Hitler, was in reality a temporiser who lacked both the moral courage to challenge the Nazis whom he despised, and the skills to run an effective secret service in their interests.

The first man to grasp this was not a German, but a young English historian with a disdain for mankind in general, and professional secret service officers in particular. The manner in which Hugh Trevor-Roper became not the nemesis of Canaris, but instead his shadow, is one of the more remarkable stories of the secret war. The brilliant, testy, supremely arrogant Oxford don who, while not homosexual, professed a deep dislike of women, had just written his first book, a study of Archbishop Laud which he often reread during the war years: ‘I am forever discovering yet more exquisite beauties, lurking unsuspected among yet profounder truths.’ He spent the years between 1940 and 1945 monitoring the wireless traffic of the Abwehr, first for MI5 then for MI6. Trevor-Roper lived and breathed Canaris and his organisation, except on days when he went foxhunting. In growing degree, and comprehensively from 1943 onwards, the English academic learned more about Germany’s intelligence services than any man in the Nazi high command knew – certainly more than Canaris himself, because Trevor-Roper could identify the Abwehr’s many false informants, controlled by the so-called ‘Twenty Committee’ of intelligence officers in London chaired by MI5’s J.C. Masterman. The young academic may have nurtured a private longing, not unusual among intellectuals, to show himself also a man of action. He was immensely respectful of a lanky though never-met cousin, Richard Trevor-Roper, owner of a small estate in Wales, who joined the RAF’s Bomber Command and served as rear-gunner to the dambusting VC Guy Gibson, winning a DFM and DFC before being killed in action on his fiftieth operation, aged twenty-nine.

In December 1939 Hugh Trevor-Roper, then twenty-five, was summoned from Merton College to work alongside Walter Gill, a lecturer in electricity who had achieved celebrity as college bursar by installing lighting in Merton’s quadrangles. During World War I ‘Gilly’ had served in an army wireless section in Egypt, where he ran an aerial up the Great Pyramid. He listed his recreations in Who’s Who as riding, wireless research and ‘rebuking sin’. Now he and Trevor-Roper formed the nucleus of the Radio Security Service, a branch of MI5 initially quartered in the cells at Wormwood Scrubs jail in west London. Day after day, Post Office operators, previously employed to catch unlicensed private wireless transmissions, scoured the airwaves for signals from enemy agents transmitting from Britain, whom it would then be the role of the Merton pair to scotch.

Gill and Trevor-Roper found themselves frustrated by the emptiness of the ether, or rather by the absence of such traffic as they sought. They were failing, so it seemed. Only slowly did they come to understand that this was not because their own eavesdroppers were incompetent, but because no German spies were signalling home. Finding their original function redundant, on their own initiative the two dons widened their researches: they began to gather intercepts from stations in Europe that used known Abwehr callsigns. One evening, in the flat they shared in the west London suburb of Ealing, over tea and biscuits they cracked an Abwehr hand-cipher – a lower encryption system used by Canaris’s bases for communications with out-stations and agents lacking Enigma machines. Trevor-Roper, a fluent German linguist, started to read its messages.

When this came to the notice of Alastair Denniston, chief of Bletchley Park, he was not amused. The RSS’s amateurs were told that they were meddling in matters of no proper concern to them. Denniston added crossly that the Abwehr material was unimportant anyway. In fairness, his dismay about the RSS’s freelancing reflected more than petty jealousy. Months, indeed years, lay ahead before Bletchley’s codebreaking operations achieved maturity, but from the outset it was obvious that if the Germans gained an inkling of what was being achieved, the game would be over. The more diffused was British cryptographic activity, the greater the risk of a leak. Broadway stepped in, to vent its own justified anger, when it was learned that Trevor-Roper’s report on Abwehr activities in North Africa was circulated to a distribution list that included the Post Office wireless section.

Gill and Trevor-Roper, stubborn and mischievous men both, persisted nonetheless; they were soon reading much of the Abwehr’s traffic with its out-stations. To the dons’ glee, even when Bletchley established its own cell to monitor the same Canaris links, it was RSS and not GC&CS which broke the next four hand-ciphers. In the spring of 1941 RSS acquired a new interception centre with American equipment at Hanslope Park in Buckinghamshire, and began to establish its own out-stations abroad. In the course of the war, the little service passed on a million signals to Bletchley.

MI6 eventually made a successful takeover bid for RSS, which was logical, given Broadway’s suzerainty over signals intelligence. Trevor-Roper found himself working with Stewart Menzies’ communications supremo, one of the secret service’s more exotic figures, Colonel Richard Gambier-Parry. The colonel was one of many luminaries of ‘secret shows’ who was able to exploit to his own advantage their freedom from accountability to a service hierarchy. Gambier-Parry established MI6’s communications centre at Whaddon Hall in Buckinghamshire, which he also made his personal residence. A keen horseman, he took over the pre-war owner’s pack of hounds and placed the huntsmen on Broadway’s payroll; on one notable occasion, the hounds in hot pursuit streamed through the security gate of Bletchley Park, arousing in the mind of a mounted spectator in the know about its activities an idyllic vision of the brutes gorging on half-digested decrypts. Gambier-Parry lived like a medieval baron. Trevor-Roper, who knew him as a fellow-foxhunter, marvelled: ‘In the world of neurotic policemen and timid placemen who rule the secret service, he moves like Falstaff, or some figure from Balzac, if not Rabelais.’ It should be added that for the rest of the war Gambier-Parry ran MI6’s communications with energy and flair.

Hugh Trevor-Roper became head of the intelligence section of MI6’s Radio Analysis Bureau, run by Felix Cowgill, a former Indian policeman. Cowgill intensely disliked his new junior, whom he deemed guilty of ‘irreverent thoughts and dangerous contacts’. The Oxford historian took it upon himself to go well beyond the production of raw intelligence, conducting evaluation and analysis in a fashion MI6 had always spurned, because it lacked officers clever enough to do such work. The RAB began to produce ‘purple primers’, local guides to Abwehr personalities and agents around the world, which soon ran to many pages. The bureau noted that the Italians, who before the war had enjoyed some notable intelligence successes, were now almost entirely dependent for material on the Germans, and thus acquired their weaknesses.

In the summer of 1941 Trevor-Roper acquired an assistant, twenty-one-year-old Charles Stuart, who had just left Christ Church with a First in history, and the two were joined by another Oxford man, Gilbert Ryle. Patrick Reilly, a gifted young diplomat who became Stewart Menzies’ personal assistant, thought their little cell ‘a team of a brilliance unparalleled anywhere in the Intelligence machine’. Trevor-Roper began to serve as secretary of the joint MI5–MI6 Wireless Committee, in which role he came to know almost everyone significant in the secret world. The peering, bespectacled historian became one of the outstanding British intelligence officers of the war. His mastery of German operations increased steadily, especially after Bletchley’s Dillwyn Knox broke into the principal Abwehr machine cipher in December 1941. While the chiefs of Broadway believed – more so following the Venlo fiasco – that their enemies’ intelligence officers were wizards of guile, from an early stage Trevor-Roper became convinced of the Germans’ institutional incompetence. As for the Abwehr’s chief, he said, far from being a masterspy Canaris was a lost little man drifting on the tides of fate.

Admiral Wilhelm Canaris came from a family of Rhineland industrialists. After service as a U-boat officer in World War I he became engaged in right-wing politics, while playing a role in rebuilding the German navy. A senior officer’s 1926 personal report extolled his skills at the military-political interface: ‘With the finest feel for foreign psychology and mentality, together with uncommon linguistic ability, he knows in exemplary fashion how to deal with foreigners (from the lowest to the prominent).’ Interestingly, however, other naval officers, including Erich Raeder and Karl Dönitz, disliked Canaris, thinking him sly.

During the early years of Hitler’s rule he ingratiated himself enthusiastically and successfully with the foremost Nazis. In 1935, aged forty-eight, he was appointed chief of Germany’s intelligence service, controlling both espionage abroad and counter-espionage at home, though Himmler ran his own domestic security service, the RSHA, under Ernst Kaltenbrunner, with the Gestapo as its enforcement arm. As Trevor-Roper noted, ‘All German politicians of consequence sought to set up their own information bureaus (just as they also sought to establish private armies) as additional supports for their personal authority; and it was essential to the purpose of these bureaus that their results should be the private property of their chiefs.’

The RSHA was no more efficient than the Abwehr, but it wielded more influence through its direct subordination to Himmler. MI6 noted that it achieved good penetration of neutral embassies in Berlin, which yielded useful information. Meanwhile, Canaris’s service had stations around the world and intelligence cells within every formation of the Wehrmacht. The admiral’s early years of office saw a dramatic expansion of his empire; he achieved a reputation for administrative efficiency and diplomatic skills, both in his handling of the Nazi hierarchy and in dealing with prominent foreigners. Until at least 1942, the service’s prestige stood high both inside Germany and abroad.

Canaris was instinctively secretive, even before he became a spymaster, and more so thereafter. Within the rambling warren of offices in a row of converted mansions on Berlin’s Tirpitzufer, where the Abwehr had its headquarters until it was bombed out in 1943, he seemed to glide almost invisibly from one room to another. So he did too on his frequent travels to other countries, especially Spain: a signed portrait of Franco, its dictator, adorned his office wall. He seldom wore uniform – an oddity in Nazi society, which was obsessed with fancy dress. He was elaborately courteous, not least to subordinates, and something of a hypochondriac who took too many pills. He relaxed by riding regularly and playing a smart game of tennis. His passion for animals was much remarked: he was followed around Abwehr headquarters by two dachshunds, to which he talked constantly. One of them once fell ill while Canaris was visiting Italy, and he telephoned at length to Berlin to discuss its condition. His Italian companions assumed that he was speaking in code about great issues of state, but his obsession with the dog was authentic. He often said that he trusted animals more than people; it was probably more accurate to say that he liked them better. In conversation, whether professional or social, he was a master of equivocation. Few people were ever sure what Canaris really thought, which was supposed by contemporaries to reflect his depth of character. More likely, it masked chronic indecision.

Although technically a branch of OKW, the Abwehr quickly became Canaris’s personal fiefdom. Throughout the war his men achieved considerable success in suppressing dissent and capturing Western Allied agents operating in Hitler’s empire, which did much to sustain the admiral’s standing in Nazi high places: Col. Franz von Bentevegni, who ran counter-espionage, was one of Canaris’s few impressive subordinate appointments. Yet the Russians were able to sustain their astonishing espionage activities inside Germany until 1942, and military leakages persisted until 1945, even if the huge matter of Germany’s broken codes lay beyond Canaris’s remit.

The agents his officers dispatched to gather information abroad were almost all unfit for the role. It is odd that Berlin never attempted to recruit spies to dispatch to Britain who might have passed for gentlemen. Even in 1940, the accent and manners of the upper class remained a passport to social acceptance in Churchill’s embattled island. The writer Cyril Connolly wrote an angry letter to the New Statesman complaining that when he himself was detained as a possible spy, he was immediately released when it was discovered that he had been educated at Eton. The experience of the Cambridge Spies, deemed beyond suspicion as members of the upper-middle class, suggests that if the Abwehr had dispatched to Britain a few Nazis with passable table manners and some skill as fly-casters or grouse-shooters, they would have been asked to all the best houses.

As it was, however, when two of Canaris’s key men, Col. Hans Pieckenbrock, the head of intelligence, and Col. Erwin Lahousen, head of sabotage, were sacked in 1943, this was no gesture of Nazi spite, made for political reasons; it was the consequence of their obvious incompetence and of their departments’ failure. German secret operations abroad deployed immense labour for negligible results. One of the Abwehr’s most notable recruits was naval lieutenant Heinrich Garbers. He was a vegetable farmer’s son, a passionate Nazi, who in 1938 had sailed across the Atlantic in a thirty-foot yacht, the Windspiel, which he constructed himself. Amid the Allied naval blockade, the Germans devised the notion of dispatching agents to far-flung places in sailing boats too humble to attract the attention of the enemy. In 1941 and 1942 Garbers made epic forays to South Africa and Namibia respectively. Thereafter he captained the little schooner Passim, which made two immense voyages at an average speed of six knots. The boat sailed under the name of the Santa Maria, and flew successively French, Spanish and Portuguese colours as Garbers deemed appropriate. In 1943 he carried three Abwehr men, codenamed ‘Walter’, ‘Fred’ and ‘Jim’, to Argentina, in what he afterwards described laconically as ‘an uneventful voyage of 65 days’.