How did glasnost and perestroika led to the collapse of the USSR?

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Tags

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2. #introduced
3. #union
4. #causes
5. #transform
6. #forces
7. #dissolution
8. #hastened
9. #mikhail
10. #reforms
11. #destabilized
12. #system
13. #weakening
14. #gorbachev
15. #perestroika
16. #collapse
17. #while
18. #glasnost
19. #soviet
20. #already