Identify the following:

1. Russian-German Reinsurance Treaty
2. Bosnia and Herzegovina
3. Triple Entente
4. All Quiet on the Western Front
5. Archduke Franz Ferdinand
6. "blank check"
7. trench warfare
8. Battle of Tannenberg
9. Erich Ludendorff
10. Schlieffen Plan
11. Lusitania
12. Walter Rathenau
13. Georges Clemenceau
14. David Lloyd George
15. Petrograd Soviet
16. home front
17. Leon Trotsky
18. Cheka
19. League of Nations
20. reparations