What was GPS first used for?

Related questions

1. Why is a GPS important?
2. Does GPS work at North Pole?
3. How does GPS on phone work?
4. What is the use of GPS in mobile?
5. What are the advantages of GPS tracking?
6. How is GPS useful?
7. How did the GPS changed the world?
8. Will satellite phones work in an apocalypse?
9. Do I have GPS on my phone?
10. How does GPS use waves?

Tags

1. #global
2. #navigate
3. #precursor
4. #military
5. #created
6. #system
7. #transit
8. #united
9. #first
10. #originally
11. #states
12. #1970s
13. #submarines
14. #systems
15. #positioning
16. #developed
17. #however
18. #navigation
19. #satellite