Belarus

The lands of modern-day Belarus came under the rule of the Grand Duchy of Lithuania.

Belarus was incorporated into the Russian Empire following the partitions of Poland-Lithuania.

The Byelorussian SSR was established as a founding constituent republic of the Soviet Union.

Some territories of the Second Polish Republic were reintegrated into Belarus after the Soviet invasion.

The Byelorussian SSR became a founding member of the United Nations.

The parliament of Belarus proclaimed the sovereignty of the republic.

Belarus gained independence during the dissolution of the Soviet Union.

A new constitution was adopted, leading to the first free presidential election.

Belarus and Russia signed a treaty for greater cooperation, forming the Union State.

Belarus's limited relationship with the Council was suspended due to its involvement in the Russian invasion of Ukraine.