What is NATO main purpose?

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Tags

1. #soviet
2. #treaty
3. #formed
4. #defend
5. #taking
6. #inception
7. #possibility
8. #other
9. #territories
10. #response
11. #atlantic
12. #alliance
13. #control
14. #formal
15. #american
16. #between
17. #europe
18. #union
19. #north
20. #their
21. #purpose
22. #organization
23. #nation
24. #communist