What countries disappeared after ww1?

Related questions

1. Why is a tank called a tank?
2. Who Killed the Red Baron?
3. Who actually killed the Red Baron?
4. What impact did tanks have on ww1?
5. How strong is Tiger tank?
6. What was the fastest plane in ww1?
7. What were the advantages of submarines in ww1?
8. How did the bloody Red Baron die?
9. What were planes used for in ww1?
10. Did Roy Brown kill the Red Baron?

Tags

1. #austria
2. #yugoslavia
3. #nation
4. #empire
5. #hungarian
6. #disappeared
7. #czechoslovakia
8. #romania
9. #hungary
10. #becoming
11. #states
12. #monarchy
13. #partial
14. #entirely
15. #italy
16. #austro
17. #poland