Cold War.

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Across
  1. 6. - Policy of pushing the limits of nuclear deterrence
  2. 8. - Policy of preventing the spread of communism
  3. 13. - Period of improved relations between the US and USSR
  4. 14. - Last name of a Soviet leader during the Cold War
  5. 15. - Period of anti-Communist hysteria in the US
Down
  1. 1. - The use of spies and covert operations during the Cold War
  2. 2. and Cover - Civil defense drill during the Cold War
  3. 3. - The hydrogen bomb, a powerful weapon developed during the Cold War
  4. 4. - Race between the US and USSR
  5. 5. - Effects of nuclear radiation
  6. 7. - Wars fought between the US and USSR in other countries
  7. 9. - Arms race between the US and USSR
  8. 10. - Control negotiations between the US and USSR
  9. 11. - Curtain dividing Europe during the Cold War
  10. 12. - City divided during the Cold War