In 1966 he became Soviet Ambassador to the United Kingdom (with concurrent accreditation in Malta starting in 1967), where he served until 1973. It is believed that he was later, in Moscow, a member of the Foreign Ministry's Collegium, understood to have been an advisory group of senior officers. He was a player in US-Soviet relations at critical times, including the Cuban Missile Crisis of 1962.
This individual held significant influence in US-Soviet relations throughout his career, particularly during a pivotal period marked by the Cuban Missile Crisis of 1962. He was a key player in diplomatic negotiations and policy decisions between the two superpowers.