USSR major people, celebrities, and parties(last names only)

12345678
Across
  1. 3. Negotiated pact with Ribbentrop in 1939
  2. 4. Led the Bolshevik revolution(october revolution)
  3. 7. Ballet dancer renowned for her beauty
  4. 8. Stalin's personal rival
Down
  1. 1. Later adopted the name Communist party of the Soviet Union
  2. 2. USSR leader from 1924-1953
  3. 5. Composed Romeo and Juliet ballet
  4. 6. Came up with the theory of communism