Why did US boycott 1980 Olympics?

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Tags

1. #summer
2. #participate
3. #soviet
4. #afghanistan
5. #refused
6. #olympic
7. #total
8. #boycott
9. #united
10. #whereas
11. #nations
12. #games
13. #protest
14. #invasion
15. #compete
16. #states
17. #moscow
18. #athletes
19. #countries