Why is the flag red white and blue?

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Tags

1. #vigilance
2. #design
3. #known
4. #states
5. #behind
6. #signifies
7. #white
8. #valour
9. #america
10. #hardiness
11. #perseverance
12. #justice
13. #significance
14. #those
15. #innocence
16. #purity
17. #colors
18. #united
19. #thomson
20. #commonly