Why did Germany build the Berlin Wall?

Related questions

1. Why did Khrushchev build the Berlin Wall?
2. How many people escaped the Berlin Wall?
3. Where is the graffiti on Berlin Wall?
4. What is the death strip?
5. Why was the Berlin Wall erected?
6. Who actually tore down the Berlin Wall?
7. Which side of the Berlin wall had graffiti?
8. Which side of the Berlin Wall was bad?
9. Why did Germany split into 2 countries?
10. Who wanted to build the Berlin Wall?

Tags

1. #soviet
2. #construction
3. #crisis
4. #divide
5. #relations
6. #itself
7. #attempting
8. #refugees
9. #short
10. #leave
11. #building
12. #germany
13. #berlin
14. #effort
15. #government
16. #communist
17. #symbolize
18. #caused
19. #begins