Socialist Youth Union
The Socialist Youth Union (Bulgarian: Съюз на социалистическата младеж, SSM) was a youth organization in Bulgaria, founded in 1921. SSM was the youth wing of the Bulgarian Social Democratic Workers Party.
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Wikipedia
The Socialist Youth Union (Bulgarian: Съюз на социалистическата младеж, SSM) was a youth organization in Bulgaria, founded in 1921. SSM was the youth wing of the Bulgarian Social Democratic Workers Party.