4. Increase of weapons ( arms race )

5. Creation of new weapons (play with new toys)

6. machine guns

7. cannons

8. U-boats

9. gases

11. History

12. Culture

13. Imperialism

14. Mobilization * Took Time to Mobilize * Little communication between countries *Huge Armies *Hard to stop process once started

16. Would not normally get involved

17. Ready to fight

21. Plan XVII

23. Trench Warfare

24. Weapons of WW1

26. Germany

28. Great Britian

29. France

30. Russia

31. United States

32. The United States- The Great War *Isolationism President Wilsons views. *Lusitania

34. AEF

35. Wilson and Pershing

37. World War One Posters

38. Zimmerman Telegram (note)

40. 1,000,000 United States Troops In Europe

41. Second battle of the Marne

42. Food strikes in Germany

43. Armistice

46. Russia

47. France

48. Great Britian

49. Germany

50. Austria/Hungary

51. Human costs of the Great War

53. Sources In Order of Appearance French soldiers ©1917, Public Domain & Library of Congress. Source: Public Domain & Library of Congress Gas Masks Australian infantry wearing Small Box Respirators (SBR). The soldiers are from the 45th Battalion, Australian 4th Division at Garter Point, Ypres sector. ©September 27 1917, Australian War Memorial. Source: Australian War Memorial Navy battle ship ©2001, Andrew Arthur Emoscopes. Source: Andrew Arthur Emoscopes Bi plane French Nieuport 17 C.1 fighter, a biplane fighter aircraft used in World War I. ©1917, Bibliotheque nationale de France. Source: Bibliothèque nationale de France

54. Sources in Order of Appearance Machine Gun License: This artistic work is in the . Tank -Bishop Museum Public Domain. Source: Bishop Museum Public Domain Lusitania- Source Wikipedia - http://en.wikipedia.org/wiki/RMS_Lusitania Woodrow Wilson – Source: Public Domain Pershing Photo -Source: Library of Congress Western front diagram- Transferred from ; transferred to Commons by using Eastern Front Poster Department of Military Art and Engineering, at the U.S. Military Academy (West Point this work is in the in the United States because it is a under the terms of Title 17, Chapter 1, Section 105 of the . See