Why is Switzerland always neutral?

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Tags

1. #sealed
2. #compromise
3. #switzerland
4. #later
5. #however
6. #neutral
7. #country
8. #invaded
9. #place
10. #satellite
11. #neutrality
12. #truly
13. #empire
14. #napoleon
15. #forcing
16. #nation
17. #france
18. #napoleonic
19. #bonaparte