Oleg Vladimirovich Penkovsky (Russian: Оле́г Влади́мирович Пенько́вский; 23 April 1919 – 16 May 1963), codenamed Hero by the CIA and Yoga by MI6, was a Soviet military intelligence officer and colonel in the GRU who supplied intelligence to the United States and the United Kingdom during the early 1960s.
Penkovsky provided extensive information about Soviet military capabilities, including technical information about Soviet ballistic missile systems and evidence that the Soviet intercontinental ballistic missile (ICBM) force was less capable than Soviet public claims had suggested. During the Cuban Missile Crisis, United States intelligence assessments combined material supplied by Penkovsky, codenamed IRONBARK, with U-2 reconnaissance photography to identify Soviet missile systems deployed in Cuba and assess their operational readiness.
Penkovsky was one of the highest-ranking Soviet officials to provide intelligence to the West up to that time. He was arrested by Soviet authorities in October 1962, tried for treason, and executed in May 1963.
Early life and military career
Penkovsky was a baby when his father was killed while fighting as an officer in the White Army during the Russian Civil War. Brought up in the North Caucasus, Penkovsky graduated from the Kiev Artillery Academy with a diploma in military engineering and was promoted to the rank of lieutenant in 1939. After taking part in the Winter War against Finland and in World War II, he reached the rank of lieutenant colonel.
In 1944, he was assigned to the headquarters of Colonel-General Sergey Varentsov, commander of artillery on the 1st Ukrainian Front, who became his patron. Penkovsky was wounded in action in 1944, at about the same time as Varentsov, who appointed him his liaison officer. In 1945, Penkovsky married the teenage daughter of Lieutenant-General Dmitri Gapanovich, thereby acquiring another high-ranking patron. On Varentsov's recommendation, he enrolled at the Frunze Military Academy in 1945 and graduated in 1948 with a degree in military science. Following his education, he worked as a staff officer for the Soviet Army.
Penkovsky joined the GRU as an officer in 1953. In 1955, he was appointed military attaché in Ankara, Turkey, but was recalled after reporting his superior officer, and later other GRU personnel, for breaches of regulations, which made him unpopular within the department. Relying once again on Varentsov's patronage, he spent nine months studying rocket artillery at the Dzerzhinsky Military Academy. He was subsequently selected for the post of military attaché in India, but the KGB uncovered the circumstances of his father's death and Penkovsky was suspended, investigated, and assigned in November 1960 to the State Committee for Science and Technology. He later worked at the Soviet Committee for Scientific Research.
Penkovsky approached American students on the Bolshoy Moskvoretsky Bridge in Moscow in July 1960 and gave them a package in which he offered to spy for the United States. He asked them to deliver it to an intelligence officer at the US Embassy. The CIA initially delayed contacting him. When the US Embassy in Moscow declined to cooperate, fearing an international incident, the CIA contacted MI6 for assistance.
Greville Wynne, a British salesman of industrial equipment who regularly travelled to countries behind the Iron Curtain, was recruited by MI6 to communicate with Penkovsky.
The first meeting between Penkovsky and two American and two British intelligence officers occurred during a visit by Penkovsky to London in April 1961. For the following 18 months, Penkovsky supplied a large volume of information to a joint CIA–MI6 team of handlers, including documents indicating that the Soviet nuclear arsenal was substantially smaller than Nikita Khrushchev publicly claimed and that the Soviets were not yet capable of producing large numbers of ICBMs. His reporting subsequently became important in United States assessments of Soviet capabilities during the Cuban Missile Crisis.
Peter Wright, a former British MI5 officer and critic of the leadership of British intelligence during much of the Cold War, believed that Penkovsky may have been a Soviet-controlled agent. Wright noted that, unlike Igor Gouzenko and some earlier defectors, Penkovsky did not reveal the names of Soviet agents in the West but primarily supplied organisational and military information. He also regarded the provision of some original documents as suspicious, believing that they would have been difficult for Penkovsky to remove from their sources. In his memoir Spycatcher, Wright argued that Soviet intelligence may have exploited what he regarded as weaknesses in British counterintelligence by deliberately presenting Penkovsky as a genuine Western source.
In Spycatcher, written with journalist Paul Greengrass, Wright recalled a response from Maurice Oldfield, who was later Chief of MI6:
When I first wrote my Penkovsky analysis Maurice Oldfield (later Chief of MI6 in the 1970s), who played a key role in the Penkovsky case as Chief of Station in Washington, told me: 'You've got a long row to hoe with this one, Peter, there's a lot of K's [knighthoods] and Gongs [medals] riding high on the back of Penkovsky' he said, referring to the honours heaped on those involved in the Penkovsky operation.
Other intelligence officers and defectors regarded Penkovsky as genuine. KGB defector Vladimir Sakharov wrote that Penkovsky's case had contributed to an internal KGB reorganisation, stating: "I knew about the ongoing KGB reorganisation precipitated by Oleg Penkovsky's case and Yuri Nosenko's defection. The party was not satisfied with KGB performance ... I knew many heads in the KGB had rolled again, as they had after Stalin".
A later CIA review of the operation stated that a comprehensive internal study completed in 1978 had established that Penkovsky was not under Soviet control during his work for Western intelligence and that the information he supplied was genuine and highly valuable, although uncertainty remained over how he was eventually compromised.
In a meeting with Leon Panetta, then director of the CIA, the head of Russia's Foreign Intelligence Service, Mikhail Fradkov, identified Penkovsky as Russia's greatest intelligence failure when Panetta asked him what he regarded as the country's worst intelligence setback.
The Soviet leadership began secretly deploying nuclear-capable ballistic missiles to Cuba in 1962 as part of Operation Anadyr. On 14 October, a US U-2 reconnaissance flight photographed Soviet missile installations under construction in western Cuba. Analysis of the photographs provided the first verified evidence that Soviet offensive ballistic missiles were being deployed on the island.
Penkovsky had previously supplied Western intelligence with extensive technical information about Soviet missile systems, including operating manuals for the SS-4 and SS-5 ballistic missiles. This material enabled US analysts to compare the U-2 photographs with known Soviet missile configurations and contributed to assessments of the type, capabilities, and readiness of the missiles being installed in Cuba. An intelligence evaluation issued on 18 October was explicitly based in part on IRONBARK material supplied by Penkovsky as well as U-2 photography.