None, all are either dictatorships or democracies
The Latvian Socialist Soviet Republic.
A
Belarus
Causasus Republic
Georgia
Latvian Socialist Soviet Republic was created in 1918.
In 1922, the Union of Soviet Socialist Republics was formed as a merging of the following existing countries:Russian Soviet Federative Socialist RepublicTranscaucasian Socialist Federative Soviet RepublicUkrainian Soviet Socialist RepublicByelorussian Soviet Socialist RepublicThe Russian Soviet Federative Socialist Republic was formed in 1917, after the October Revolution, from most of the former Russian Republic, formerly known as the Russian Empire.
Belarus, is the answer and it is located just North of Ukraine.
Persian Socialist Soviet Republic ended in 1921.
Kazakh Soviet Socialist Republic was created in 1936.
Lithuanian Soviet Socialist Republic was created in 1940.
Galician Soviet Socialist Republic ended in 1920.