Who was to blame for the Cold war?

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Across
  1. 2. Western operation supplying West Berlin during the blockade
  2. 4. Western economic system criticised by the USSR
  3. 5. International organisation intended to promote peace after WWII
  4. 7. Conflict where the US intervened to stop communist expansion
  5. 8. US Secretary of State who proposed massive economic aid to Europe
  6. 10. 1945 meeting where tensions grew over Germany’s future
  7. 11. US report describing Soviet intentions as expansionist
  8. 13. US diplomat who developed the idea of containment
  9. 16. British leader who warned of an “Iron Curtain” dividing Europe
  10. 18. Western military alliance formed in 1949
  11. 19. Soviet political and economic ideology opposed by the West
  12. 21. Soviet organisation created to tighten control over Eastern Europe
  13. 22. Area of Eastern European states used by the USSR for security
  14. 23. Soviet‑led military alliance formed in 1955
Down
  1. 1. US policy aimed at stopping the spread of communism
  2. 3. Metaphor describing the division between East and West Europe
  3. 6. Soviet leader whose post‑war actions increased East–West tension
  4. 9. Soviet attempt to force the West out of Berlin in 1948–49
  5. 12. US president who adopted a tougher stance toward the USSR after 1945
  6. 14. Soviet report portraying the USA as seeking world domination
  7. 15. 1945 meeting where the Big Three planned post‑war Europe
  8. 17. Soviet foreign minister involved in early Cold War negotiations
  9. 20. Soviet economic organisation set up to counter the Marshall Plan