Period 3- Aria

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Across
  1. 4. first artificial satellite by US
  2. 6. North Atlantic Treaty Organization
  3. 8. theory other countries would fall under soviet control
  4. 9. General fired for wanting nuclear war
  5. 10. first 9 black students enrolled at high school
Down
  1. 1. Soviet Union allied with European countries
  2. 2. US assisted nations under threat of communism
  3. 3. secret project by US for atomic bomb
  4. 5. young boy killed important civil rights movement
  5. 7. no freedom of speech or political parties