1984: Moscow pulls out of US Olympics
Twelve weeks before the opening ceremony of the Los Angeles Olympic Games, the USSR has announced it is boycotting them. It is expected most of the Eastern Bloc will follow suit.
The announcement, which was made on Russian TV this afternoon, blamed the commercialisation of the games and a lack of security measures, which amounted to a violation of the Olympic charter.
The Soviet Union accused the United States of using the games "for political purposes" and "stirring up anti-Soviet propaganda" and of having a "cavalier attitude to security of Russian athletes".
In 1980 the USA and more than 60 other countries boycotted the Moscow Olympics in protest at the Soviet invasion of Afghanistan.
The Russians' withdrawal will devalue the Los Angeles Games far more than the US boycott as it seems certain that top-class athletes from the Eastern Bloc will also be prevented from taking part.
The White House denounced the move calling it a "blatant political act".
John Hughes, a State Department spokesman, said the USA had "gone the extra mile" to ensure adequate security measures were in place.
He took the opportunity to attack the USSR for its "barbarous behaviour" in Afghanistan and its persecution of Russian dissidents such as Dr Andrei Sakharov living in forced exile in the Russian town of Gorky.
Moscow has still not officially told the IOC of its boycott but there is little hope that the decision will be reversed.