U.S History Crossword Puzzle

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Across
  1. 3. Doctrine promising military or economic aid to any Middle Eastern country
  2. 4. American gov. official who was accused being a Soviet spy
  3. 7. civilian foreign intelligence service of the United States
  4. 11. Doctor who introduced a vaccine against poliomyelitis
  5. 12. increase in birth rate especially following World War II
  6. 14. President Dwight D. Eisenhower signed the bill into law
  7. 15. military alliance of European and North American democracies
  8. 16. in charge of U.S. science and technology
Down
  1. 1. threats propaganda and other measures short of open warfare
  2. 2. Republican Senator from Wisconsin
  3. 5. 37th President of the United States
  4. 6. campaign against alleged communists
  5. 8. Soviet artificial satellites
  6. 9. was an American diplomat and historian
  7. 10. military alliance of communist nations in eastern Europe
  8. 13. program which United States gave large amounts of economic aid to European countries