In the modern Olympics world, two separate political problems resulted in major nation boycotts.

For the 1980 Summer Olympics in Moscow, US President Jimmy Carter ordered a US boycott because of the Soviet invasion of Afghanistan.

The next Summer Olympics were in Los Angeles and The Soviet Union led a group of their followers in a boycott in 1984. This was their response to the US 1980 boycott.

In response to the US boycott in 1980 because of the Afghan invasion from the USSR.

No, Great Britain has participated in every Summer Olympics and every Winter Olympics.

The US and 64 other countries boycotted the 1980 olympic games because of the Soviet invasion of Afghanistan.

1980