1. World War I Begins in Europe 1914 USA enters 1917
Armistice signed 1918
Treaty Signed 1919

2. 5QHW Check What were the 4 underlying (MAIN) causes of WWI?
What was the “Spark” that set off World War I?

3. Comparing 2 Sources
Sourcing: consider who wrote each document as well as the circumstances of its creation.
Corroboration: consider details across multiple sources to determine points of agreement and disagreement.

4. CAUSES Militarism (Buildup of military) Alliance System (Entangled)
Imperialism (Competition for Colonies)
Nationalism (A unifying and a divisive force)
Spark= Assassination of Archduke Franz Ferdinand (Heir to the Austrian throne)

6. How did it all begin?
Franz Ferdinand, Archduke of Austria and his Wife Sophie, Duchess of Hohenberg one hour before their deaths, June 28, 1914

8. Alliances Allied Powers Central Powers Great Britain France Russia
Serbia
Belgium
United States
(officially neutral till 1917)
Germany Austria-Hungary Bulgaria Ottoman Empire
This regional conflict quickly becomes a World War as participants rely on their colonial possessions for supplies/people.

9. 1914 – 1915 Illusions and Stalemate
Belief that Modern industrial war could not be conducted for more than a few months
“Home by Christmas”
Christmas Truce 1914”

10. The Course of the War
The bulk of the war happens on the Western Front and before the USA becomes involved.
The Western Front was characterized by the Trench System and a stalemate.

17. Mass Devastation

18. Freezing Winters

20. Gallipoli – fought on the beaches - sandbags

22. Trench Foot

23. WWI Soldiers

24. First Industrial War “Modern” Weapons crippled the “frozen front”
Poison gas
Hand grenades
Flame throwers
Tanks
Airplanes
Submarines
Machine Guns
Zeppelins

25. The Tank

26. German Zeppelin and warships on maneuvers during World War One

27. U Boats

28. Flame Throwers

29. Airplanes

30. Biological Weapons

31. Why did the usa join the war?
Evaluation Sources

32. Evaluating Resources
Examine the documents in the envelope and group the reasons based on political, economic, and social reasons. Be able to define social, political and economic.
How do these documents relate to our enduring understandings for this unit?

33. Evaluating Sources
Group the reasons into two categories “war worthy” and “not war worthy.”
How do we know when it is time to go to war?

34. Historical Thinking Skills Practice
Examine the two primary source documents (Sinking of the Lusitania Document and the Zimmerman telegram)
Source the Documents/ Author, date, event it relates
What German action is corroborated by both documents?
Do we have enough evidence, sufficient reasons to go to war?

35. Events Leading to War
The Lusitania

36. Foreign Policy- Idealism/Morally Right
Woodrow Wilson
28th President
Democrat
Foreign Policy- Idealism/Morally Right
Woodrow Wilson

37. The Zimmerman Telegram

38. Colonel John. J. Pershing
“Black Jack” Pershing Led American Expeditionary Forces in Europe (WWI) Only one of two men to reach the highest rank (General of the Armies) signifying service directly under the President.

39. America helps win the war!
To learn more about how American mass production helped win the war for the Allies click HERE.