School thing

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Across
  1. 3. The last Russian Dynasty; House of ________
  2. 4. Russia used them to invade Ukraine on another side
  3. 6. Lover of the Russian Queen
  4. 9. Division of certain countries or empires
  5. 11. USSR ideology
  6. 12. No tariffs
  7. 14. Terms for Russian King (both spellings)
  8. 16. Prime Minister of Russia thrown over by the Bolsheviks
  9. 17. Emergency government for new country
  10. 18. First ruler after Nicholas 2
Down
  1. 1. Wrote The Communist Manifesto
  2. 2. The ones that won the Russian civil war
  3. 5. They just got invaded
  4. 7. Is ______ or Hitler worse
  5. 8. Abbreviation of the official name of the Soviet Union
  6. 10. Ended the House of Romanovs
  7. 11. Started the House of Romanovs
  8. 13. Lover of Frida Khalo
  9. 15. Stalin was born here
  10. 17. The working class