The Sword and the Shield: The Mitrokhin Archive and the Secret History of the KGB

Early in 1941, the London residency renewed contact with the other members of the Five. Maclean continued to provide large numbers of Foreign Office documents. Unlike Philby, Burgess had failed to secure a transfer from Section D of SIS to SOE and had returned to the BBC. Blunt, however, had succeeded in entering the Security Service, MI5, in the summer of 1940. As well as providing large amounts of material from MI5 files, Blunt also ran as a sub-agent one of his former Cambridge pupils, Leo Long (codenamed ELLI), who worked in military intelligence.¹³ Among the early intelligence provided by Blunt from MI5 files was evidence that during the two years before the outbreak of the Second World War the NKVD had abandoned one of its best-placed British agents. In the summer of 1937, at the height of the paranoia generated by the Great Terror, the Centre had jumped to the absurd conclusion that Captain King, the Foreign Office cipher clerk recruited three years earlier, had been betrayed to British intelligence by Teodor Maly, the illegal resident in London. Blunt revealed that King had gone undetected until his identification by a Soviet defector at the outbreak of war.¹⁴

Cairncross too had succeeded in occupying what the Centre considered a prime position in Whitehall. In September 1940 he left the Treasury to become private secretary to one of Churchill’s ministers, Lord Hankey, Chancellor of the Duchy of Lancaster. Though not a member of the War Cabinet (initially composed of only five senior ministers), Hankey received all cabinet papers, chaired many secret committees and was responsible for overseeing the work of the intelligence services.¹⁵ By the end of the year Cairncross was providing so many classified documents—among them War Cabinet minutes, SIS reports, Foreign Office telegrams and General Staff assessments—that Gorsky complained there was far too much to transmit in cipher.¹⁶

During 1941 London was easily the NKVD’s most productive legal residency. According to the Centre’s secret statistics, the residency forwarded to Moscow 7,867 classified political and diplomatic documents, 715 on military matters, 127 on economic affairs and 51 on British intelligence.¹⁷ In addition it provided many other reports based on verbal information from the Five and other agents. It is difficult to avoid the conclusion that, until the Soviet Union entered the war, most of this treasure trove of high-grade intelligence was simply wasted. Stalin’s understanding of British policy was so distorted by conspiracy theory that no amount of good intelligence was likely to enlighten him. Despite the fact that Britain and Germany were at war, he continued to believe—as he had done since the mid-1930s—that the British were plotting to embroil him with Hitler. His belief in a non-existent British conspiracy helped to blind him to the existence of a real German plot to invade the Soviet Union.

THE LEGAL RESIDENCY in the Berlin embassy resumed work in 1940 at about the same time as that in London. The NKVD had lost touch with its most important German agent, Arvid Harnack (codenamed CORSICAN), an official in the Economics Ministry, in June 1938. Early on the morning of September 17,1940 contact was resumed by the newly arrived deputy Berlin resident, Aleksandr Mikhailovich Korotkov (alias “Erdberg,” codenamed SASHA and DLINNY). The fact that Korotkov simply knocked on Harnack’s door and arranged their next meeting in the Soviet embassy is evidence both of the decline in tradecraft caused by the liquidation of most experienced INO officers and of the fact that the Gestapo was at this stage of the war far less omnipresent than was widely supposed.

A fellow member of the German Communist underground, Reinhold Schönbrunn, later recalled:

Harnack… had little sense of humor, and we, his colleagues, did not feel at ease in his presence. There was something of the puritan in the man, something narrow and doctrinaire. But he was extremely devoted.

Like Burgess and Philby, Harnack was so highly motivated that he had carried on recruiting intelligence sources even during the two and a quarter years that he was out of contact with the Centre. Korotkov reported that Harnack was in touch with a loose network of about sixty people, although he could not “personally vouch for every person”: