What do the colors of the Afghanistan flag mean?

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Tags

1. #afghanistan
2. #bands
3. #fought
4. #represents
5. #symbolizes
6. #colors
7. #nation
8. #troubled
9. #tricolor
10. #country
11. #blood
12. #black
13. #while
14. #national
15. #islam
16. #those
17. #vertical
18. #three
19. #independence
20. #green
21. #features
22. #prosperity