What did Shield originally stand for?

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Tags

1. #stands
2. #homeland
3. #hazard
4. #these
5. #intervention
6. #espionage
7. #international
8. #enforcement
9. #directorate
10. #division
11. #originally
12. #previously
13. #strategic
14. #logistics
15. #headquarters
16. #supreme
17. #stood