Kaliningrad was part of the Russian Soviet Federated Socialist Republic. It is now part of the Russian Federation.
The Union of Soviet Socialist Republics
Union of Soviet Socialist Republics
Union of Soviet Socialist Republics.
Fifteen.
Union of Soviet Socialist Republics
The Union of Soviet Socialist Republics
USSR (Union of Soviet Socialist Republics)
Union of Soviet Socialist Republics
Union of Soviet Socialist Republics.
Union of Soviet Socialist Republics.
United Soviet Socialist Republics is the full, official name for the Soviet Union and often abbreviated USSR.
Russia was by far the largest of the republics.
USSR is how the Soviet Union was abbreviated by English speaking people. It stands for Unior of Soviet Socialist Republics. There were several SSR's, Soviet Socialist Republics.
Fifteen.
There were fifteen.
1922.
Union of Soviet Socialist Republics