Oleg Penkovsky, Russian colonel (died 1963)

Oleg Penkovsky

British spy in the USSR (1919–1963)

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…