What is the toughest branch of the military?

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Tags

1. #corps
2. #marine
3. #other
4. #units
5. #around
6. #their
7. #branch
8. #generally
9. #speaking
10. #though
11. #training
12. #readiness
13. #marksmanship
14. #toughest
15. #reputation
16. #superior
17. #military