Obviously, others have done just that but what about the Soviets? Were there even any significant Jewish population during that era?
You might be interested in some previous threads on Jewish people in the early USSR:
What was it like to be Jewish in the Soviet Union during the 1930s? - 2 comments, less 1 month old.
A flaired commenter here details the place and treatment of Jewish people in Russia from the Late Russian Empire to the end of World War II in the Soviet Union.
Stalin's purges - military question. - 13 comments, over 2 years old.
This thread focuses on discriminatory policies and actions imposed on Jewish people serving in the Soviet military during the 1920s and 1930s.
How were Jews liberated from Concentration Camps treated by the Red Army? - 7 comments, over 10 months old.
The commenters summarize Soviet treatment both of Soviet prisoners being held in Germany and of liberated Jewish people from the death camps though it does not talk about the labor camps.
How has the Holocaust been perceived in Soviet/post-Soviet countries? - 7 comments, over 2 years old.
This thread goes into both how the Holocaust was viewed in the Soviet Union and Stalin's policies towards Jewish people before, during, and after World War II.