The document summarizes the key causes of World War 1, including militarism, alliances between European powers, nationalism, and imperialism. It also discusses specific events that escalated tensions, such as the assassination of Archduke Franz Ferdinand and Germany's declaration of unrestricted submarine warfare, as well as factors that eventually led the US to join the war in 1917.

1. World War I

2. Causes of WWI: MANIA
Militarism – policy of building up strong military forces
to prepare for war
Alliances - agreements between nations to aid and
protect one another
Nationalism – pride in or devotion to one’s country
Imperialism – when one country takes over another
country economically and politically
Assassination – murder of Austrian Archduke Franz
Ferdinand

3. Imperialism:
European
conquest of
Africa

4. Causes of World War I - Alliances
Triple Entente: Triple Alliance:
Great Britain Germany
France Austria-Hungary
Tension
Russia Italy

5. Causes of World War I - Nationalism
Pan-Germanism - movement to unify the people of all
German speaking countries
Germanic Countries
Austria * Luxembourg
Belgium Netherlands
Denmark Norway
Iceland Sweden
Germany * Switzerland *
Liechtenstein * United Kingdom
* = German speaking country

7. Causes of World War I - Imperialism

8. Causes of World War I - Imperialism

9. Causes of World War I - Assassination
Archduke Franz Ferdinand and Duchess Sophie
Sarajevo, Bosnia - June 28th, 1914.

10. Causes of World War I - Assassination

11. Causes of World War I - Assassination
Austrian
Archduke
Franz
Ferdinand
was killed in
Bosnia by a
Serbian
nationalist
who believed
that Bosnia
should belong
to Serbia.

12. Allied Powers: Central Powers:
Great Britain Germany
France Austria-Hungary
World War I
Russia Ottoman Empire
Italy

13. Americans Question Neutrality

14. Which side to pick?
US Exports to both sides!
Nations 1914 1915 1916
Britain $594,271,863 $911,794,954 $1,526,685,102
France $159,818,924 $364,397,170 $628,851,988
Germany $344,794,276 $28,863,354 $288,899
Central Powers: Allies:
•11 million German-Americans •Close cultural ties
•Irish-Americans hated Great •Shared transatlantic cables (so censored
Britain stories)
•Big business loaned much $ to allies

15. What will it take to get the U.S. involved?
• Lusitania
– torpedoed, sinking with
1200 passengers and
crew (including 128
Americans)
– German U-Boat

16. What will it take to get the U.S. involved?
• Unlimited Submarine
Warfare
– 1917 Germany
announced “unlimited
submarine warfare” in
the war zone

17. What will it take to get the U.S. involved?
• Zimmerman Telegram
– Intercepted from
Germany to Mexico
– Promised Texas, Arizona,
and New Mexico back in
return for an alliance

18. What did it take to get the
US involved?
•Zimmerman
Note + the
sinking of 4
unarmed
American
ships led to
a
declaration
of war