Chiara Silvestre crossword puzzle

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Across
  1. 2. one of organization objectives
  2. 7. month of the conference in San Francisco
  3. 8. number of the first states that joined the UN
Down
  1. 1. UN was established after
  2. 3. one of main office closest to Italy
  3. 4. one of the aims that maintains intergovernmental organization that start with S
  4. 5. headquartered on international territory
  5. 6. intergovernmental organization that aims to maintain international peace and security