By the time Soviet troops were withdrawn from Afghanistan in 1989, it had become one of the CIA’s longest and most expensive covert operations.

The sensational defection of Stalin’s only surviving child made international news and four days later, at a press conference in the Plaza Hotel, she denounced the Soviet Communist regime and her father’s leadership.

On the 27th January 1945, Soviet soldiers from the 322nd Rifle Division liberated the Auschwitz-Birkenau concentration camp near the Polish city of Oświęcim.

When news of the incident reached the Soviet Union, party leader Leonid Brezhnev wrote to Carter condemning the ‘tremendous danger’ caused by the error.

Shortly after midnight in Moscow, the Soviets became the first to successfully send a human-made object to the Moon.