Oleg Vladimirovich Penkovsky, codenamed Hero and Yoga was a Soviet military intelligence (GRU) colonel during the late 1950s and early 1960s. Penkovsky informed the United States and the United Kingdom about Soviet military secrets, including the appearance and footprint of Soviet intermediate-range ballistic missile installations and the weakness of the Soviet intercontinental ballistic missile (ICBM) program. This information was decisive in allowing the US to recognize that the Soviets were placing missiles in Cuba before most of them were operational. It also gave US President John F. Kennedy, during the Cuban Missile Crisis that followed, valuable information about Soviet weakness that allowed him to face down Soviet leader Nikita Khrushchev and resolve the crisis without a nuclear war.
Oleg Penkovsky, Russian colonel (died 1963)
Oleg Penkovsky, Russian colonel (died 1963)
On April 23, in the year 1919, Oleg Penkovsky, Russian colonel (died 1963). This event is recorded as a Notable Births event in the history of April 23, one of 445 recorded events on this date across all of history.
1 notable person is associated with this event, including Oleg Penkovsky. Learn more below.
Key Facts
- This event took place on April 23, 1919 (AD era).
- It is categorised as a Notable Births event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 7 March 2026.
On This Date in History 445
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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