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Across
  1. 4. Policy of openness under Gorbachev.
  2. 6. Organization aiming to represent Palestinian interests.
  3. 8. Restructuring policy in the USSR in the 1980s.
  4. 9. Canal returned to Panama in 1999, treaty signed earlier.
  5. 11. First human in space, 1961.
  6. 12. Mission that first landed humans on the moon.
  7. 15. Accords aimed at reducing Cold War tensions.
  8. 16. Leader of the 1979 Iranian Revolution.
  9. 19. Accords signed in 1978 for Middle East peace.
  10. 20. Amendment proposed to guarantee gender equality, never passed.
Down
  1. 1. Treaty aiming to reduce U.S. and USSR nuclear arms.
  2. 2. San Francisco district central to 1960s hippie culture.
  3. 3. Nuclear disaster in the USSR, 1986.
  4. 5. Conflict from 19501953 between North and South.
  5. 7. 1973 standoff between AIM and U.S. government.
  6. 10. U.S. President during the late 1970s oil crisis.
  7. 13. First U.S. space station launched in 1973.
  8. 14. Polish trade union pivotal in Cold War's end.
  9. 17. Alliance formed in 1949 against Soviet expansion.
  10. 18. Strategic Defense Initiative, proposed by Reagan.