World War One

5. German submarines
8. the nation that did not join the league of nations
9. alliance between Great Britain, France, and Russia
10. the first world war
11. the archduke of Austria-Hungary that was assassinated
14. things that allowed the British clear paths for ground troops
15. president Wilson's idea to create peace by joining all the nations together
16. nation that began gaining ground between 1914-1917
17. the German kaiser during the war that was forced to give up the throne
18. the telegram from Germany to Mexico that was intercepted by the U.S., causing the U.S. to enter the war
20. nation that switched sides during the war

1. the treaty that ended the war
2. Britain's idea to block off all trades to Germany with their naval fleet
3. the British passenger ship that Germany sank
4. German soldier during world war one that eventually became the dictator of Germany
6. alliance between Germany, Austria-Hungary, and Italy
7. president of the U.S. during the war(last name)
12. President Wilson's proposed treaty to end the war that got rejected for the Treaty of Versailles
13. the United States tried to practice this before the war
19. where the Zimmerman note was intended to go