Behind the Iron Curtain - Berlin Wall Construction

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Across
  1. 3. - Many tried to do THAT from Eastern side, few succeeded
  2. 7. - US, UK, France in West Germany
  3. 9. - Main purpose of the wall
  4. 11. - Line of separation
  5. 14. - Happened in 1990s, post-wall
  6. 15. - East German state (acronym)
Down
  1. 1. - Charlie, famous crossing point
  2. 2. - Tower, for watching potential defectors
  3. 4. - Synonym for the wall
  4. 5. - Eastern Communist countries
  5. 6. - East German secret police
  6. 8. - Union, major Eastern power
  7. 10. - Act of leaving East for West
  8. 12. - Going from one side to the other
  9. 13. - Soviet leader during wall's prime