1. World War One

2. Causes of the War Nationalism Imperialism Militarism
A devoted interest in the growth and stability of one’s home country and culture
Imperialism
Extending economic and political control over smaller/weaker nations
Militarism
Development of stronger armed forces to be used as a “tool of diplomacy”
Building Alliances
Meant to help keep the balance of power and increase international security

3. The Alliances The Triple Entente The Triple Alliance
France, Britain, Russia
Later known as the Allies
The Triple Alliance
Germany, Austria- Hungary, Italy
Later known as the Central Powers

4. US Entrance in WWi

5. Break Out of War - 1914 Assassination of Archduke Franz Ferdinand
June 1914 in Bosnia
Heir to Austrian throne
Killed by Gavrilo Princip, Serbian nationalist
Austria-Hungary declared war on Serbia; other nations pulled in due to alliances and treaties previously signed

6. American Loyalties Socialists Pacifists Nationalism vs. Ancestry
felt war was a struggle for Germany and Europe to control trade markets in Asia, Africa, Middle East
Pacifists
felt war was evil and US should set an example to world to remain peaceful
Nationalism vs. Ancestry
Many still had connections, family or sympathies with home nations – especially with Britain
War Propaganda
Germany as the “bully of Europe”
Economic ties with Allies; grew as Allies turned to US for manufacturing of war supplies

7. Lafayette Escadrille

8. British Blockade of Germany
Full Blockade started in November,
Denied trade with Germany to all, including American ships
US not happy with blockade
Would last until 1919
Lack of supplies in Germany led to famine which killed many
Germany responds with use of U- boats (submarines) – sinking any Allied ships found in British waters

9. Lusitania US declares war on April 2nd, 1917
US declares war on April 2nd, 1917
To make the world “safe for democracy” and ensure future peace and freedom

10. Selective Service Act May 1917
Required men to register with the government to sign up for military service
By end of 1918, 24 million men had signed up
3 million called to join military; 2 million sent to Europe before end of war
Most not high school educated; 1 in 5 were immigrants
Not able to send significant numbers of troops until Spring

11. Battle of Cantigny May 28th, 1918
First sustained American offensive in WWI
On the Somme River in France
Captured village from Germany
American Expeditionary Force (known as “doughboys”) led by General John J. Pershing
First major American victory in war

12. Belleau Woods – 45 miles outside of Paris
Battle of Belleau Wood
June 1918
Belleau Woods – 45 miles outside of Paris
3 week battle against German forces in the woods
Predominately American forces - Doughboys
Finally won on June 26th
Almost 10, 000 US troops killed, wounded or missing in action

13. Combined Allied attack against German forces
Second Battle of Marne
July 18th, 1918
Combined Allied attack against German forces
In France near Marne river
Lasted 2 days – German retreat on July 20th
Allies gained all land taken by Germany in area from all Spring 1918 battles
Broke Central Power’s offensive -last large-scale battle with Germany
MASSIVE casualties:
168,00 German
95,000 French
13,000 British
12,000 American

14. End of War November 3rd 1918 Austria-Hungery surrenders to Allies
November 11am,
Germany agrees to cease-fire, signs armistice
Treaty of Versailles
Signed June 28th, 1919