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

THE WARTIME RECORD of Soviet intelligence on the eastern front was patchy. Up to the end of 1942 the main espionage system providing intelligence from Nazi Germany and occupied Europe was a loosely coordinated GRU illegal network linked to the NKVD Harnack and Schulze-Boysen groups, codenamed the Rote Kappelle (“Red Orchestra”) by the Abwehr. The “musicians” were the radio operators who sent coded messages to Moscow; the “conductor” was the Polish Jew Leopold Trepper, alias Jean Gilbert, known within the network as le grand chef. The Rote Kappelle had 117 agents: 48 in Germany, 35 in France, 17 in Belgium and 17 in Switzerland.⁷⁰ The network was gradually wound up during the later months of 1942 as German radio direction-finding tracked down the “musicians.” Trepper himself was captured as he sat in a dentist’s chair in occupied Paris on December 5. According to the Abwehr officer who arrested him, “For a second he was disturbed; then he said in perfect German, ‘You did a fine job.’” Only Rado’s GRU illegal residency in Switzerland, known as the Rote Drei after its three main radio transmitters, which was out of reach of German intelligence, continued work for another year until it was shut down by the Swiss.⁷¹

Though both Trepper and Rado were sentenced to ten years’ imprisonment in Moscow after the war, it was later alleged by Soviet historians that intelligence from the Rote Kappelle had been of enormous assistance to the Red Army. In reality, intelligence did not begin to have a significant influence on Soviet military operations until after Trepper was arrested and most of his network wound up. Military intelligence failed to detect the sudden German turn south which captured Kiev in September 1941, and was taken aback by the intensity of the October assault on Moscow. The loss of Kharkov in May 1942 was due partly to the fact that the Stavka (a wartime combination of GHQ and high command) was expecting another attack on the capital. The Wehrmacht’s move south in the summer again took the Stavka by surprise. Throughout the German advance to Stalingrad and the Caucasus, Soviet forces were constantly confused about where the next blow would fall. When the Red Army encircled Axis forces at Stalingrad in November 1942, it believed it had trapped 85,000 to 90,000 troops; in reality it had surrounded three times as many.⁷²

The NKVD’s main role at Stalingrad was less in providing good intelligence than in enforcing a ferocious discipline within the Red Army. About 13,500 Soviet soldiers were executed for “defeatism” and other breaches of military discipline in the course of the battle, usually by a squad from the NKVD Special Detachment. Before execution, most were ordered to strip so that their uniform and boots could be reused. The NKVD postal censorship seized on any unorthodox or politically incorrect comment in soldiers’ letters to their families as evidence of treachery. A lieutenant who wrote “German aircraft are very good… Our anti-aircraft people shoot down only very few of them” was, inevitably, condemned as a traitor. In the 62nd Army alone, in the first half of October 1942, the NKVD claimed that “military secrets were divulged in 12,747 letters.”⁷³ The great victory at Stalingrad, sealed by the surrender of the German Field Marshal Friedrich Paulus, twenty-two generals and 91,000 troops early in 1943, was achieved in spite of, rather than because of, the contribution of the NKVD.

Stalingrad was followed by a major improvement in the quality of Soviet military intelligence on the eastern front, made possible in part by massive supplies of radio equipment from the Americans and the British.⁷⁴ At the end of 1942 the Stavka established special-purpose radio battalions, each equipped with eighteen to twenty radio-intercept receivers and four direction-finding sets. The result, according to a Soviet historian given access to the battalions’ records, was “a qualitative jump in the development of radio-electronic combat in the Soviet army.” Though Soviet cryptanalysts lacked the state-of-the-art technology which enabled Bletchley Park to decrypt high-grade Enigma and Geheimschreiber messages, they made major advances during 1943—reluctantly assisted by German cipher personnel captured at Stalingrad—in direction-finding, traffic analysis and the breaking of lower-grade hand ciphers. In 1942-3 they also had the benefit of Luftwaffe Enigma decrypts supplied by an agent inside Bletchley Park.