Was Yugoslavia invaded in ww2?

Related questions

1. What is Yugoslavia known as now?
2. Is Albania dangerous?
3. Why did Serbia want Bosnia?
4. Why did US bomb Serbia?
5. How many Serbs were killed in the Bosnian war?
6. How did the Yugoslavia war end?
7. Why did they assassinate Franz?
8. What happened to Gavrilo Princip after he killed Franz Ferdinand?
9. Why did the Black Hand kill Archduke Ferdinand?
10. Who started Yugoslavia war?

Tags

1. #world
2. #kingdom
3. #known
4. #attack
5. #german
6. #powers
7. #which
8. #during
9. #invasion
10. #yugoslavia
11. #operation
12. #april
13. #began