Cause of the WW1

2. officials who led the Ottoman Empire's revolution in 1908.
4. Soviet Union signed a__________ pact with Germany in 1939
5. empire referred to as the "sick man of Europe."
6. war I still in ___________ when Russian Revolution took place.
8. including Serbia, France, and Britain during WWI.
9. heir to the Austria-Hungary empire assassinated in Sarajevo.
13. the rest of the world in a series of _________ conquests
16. weapon that caused severe injuries and fatalities, first used on a large scale in WWI.
18. defensive system used extensively during WWI.
19. policy initially adopted by the US to avoid involvement in WWI.
22. tenaciously to the idea of a League of Nation
23. prosperity ended with the worldwide_________
24. pre-war alliance of France, Russia, and Britain.
26. alliance including Germany, Austria-Hungary, and the Ottoman Empire.
27. of Poland convinced Britain and France that _________ had to be stopped
28. type of chemical weapon used in WWI.
29. British liner sunk by Germany, changing American opinion.
30. belief that the emperor was devine

1. troops entered_________ and rapidly occupied the entire country.
3. US had decided after world war 1 to remain___________ European squabbles.
7. first name of the Archduke of Austria-Hungary.
10. region where tensions between Austria-Hungary and Serbia escalated.
11. treaty signed in 1919 to officially end WWI.
12. Serbian terrorist organization responsible for the assassination in 1914.
14. day when WWI ended, also known as Armistice Day.
15. leader of the Bolshevik Revolution who pulled Russia out of WWI.
17. planes bombed Pearl Harbor in __________
20. that joined WWI on the side of the Allied Forces after intercepting a German message to Mexico.
21. first nation to declare war in WWI after the assassination.
25. blamed for WWI and forced to pay reparations.