<P> The Lithuanian Soviet Socialist Republic ( Lithuanian SSR ; Lithuanian : Lietuvos Tarybų Socialistinė Respublika ; Russian : Литовская Советская Социалистическая Республика , Litovskaya Sovetskaya Sotsialisticheskaya Respublika ) , also known as Soviet Lithuania or Lithuania was a republic of the Soviet Union . It existed from 1940 to 1990 . </P>
<P> The Lithuanian Soviet Socialist Republic ( Lithuanian SSR ; Lithuanian : Lietuvos Tarybų Socialistinė Respublika ; Russian : Литовская Советская Социалистическая Республика , Litovskaya Sovetskaya Sotsialisticheskaya Respublika ) , also known as Soviet Lithuania or Lithuania was a republic of the Soviet Union . It existed from 1940 to 1990 . </P>
when did lithuania become part of the soviet union
when did lithuania become part of the soviet union
1940
1940