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Causes of WWI Chapter 10 Section 1


Title: US Entrance into WWI Chapter 10 Section 1 Author: awhaley Last modified by: awhaley Created Date: 1/19/2011 3:39:43 PM Document presentation format – PowerPoint PPT presentation

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Title: Causes of WWI Chapter 10 Section 1

Causes of WWI Chapter 10 Section 1
What caused WWI?
  • M.A.I.N
  • Militarism
  • Alliances
  • Imperialism
  • Nationalism

  • Glorification of the military
  • When a nations armed forces come to dominate a
    countrys national policy.
  • As tensions increased leaders began to stockpile
    weapons and increase armies.
  • Many of these nationstried to outdo each other
    by trying to have the most modern weaponry and
    the most menin uniform.

1880 1914 Germany 1.3m 5.0m France 0.73m 4.0m Ru
ssia 0.40m 1.2m Military Sizes
  • Alliances began to from among countries causing
    increased confidence among leaders.
  • Triple Alliance- Germany, Austria-Hungary,
    Ottoman Empire, and Bulgaria
  • Austria-Hungary and Germany will be known as the
    Central Powers
  • Triple Entente France, Russia, Great Britain
  • Later known as the Allies
  • Entente alliances formed by signing non-binding
  • agreements to try keep peace. Leaders knew if
    they declared war they would have backup.

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  • Many of the countries in Europe tried to
    establish empires that expanded throughout the
  • They were frequently getting into each others
    way which led to animosity between the countries.
  • During the Franco-Prussian War (1870) Prussia
    (Germany) gained control over a small border
    province, Alsace-Lorraine. France resented this
    takeover and gave motive for war 44 years later.

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  • Extreme devotion to ones nation
  • Europeans believed that a nation should express
    one ethnic group.
  • If a country existed as a representation of its
    people (the majority ethnic group) the
    minorities were being left out leading to
    increased tension.

Serbias national flag
Nationalism (Cont)
  • Nationalism helped weaken empires such as
    Austria-Hungary and Ottoman.
  • Serbia became independent and threatened
    Austria-Hungary by trying to gain some of their
    land and setting example for Austria-Hungary.
  • Social Darwinists believed the best country would
    come out the winner.

  • 28 June 1914
  • Heir to Austrian throne Franz Ferdinand visits
  • At the time, Bosnia was under the rule of
    Austria-Hungary. But it was also the home of many
    Serbs and other Slavs, leading to unrest. This
    area is called the Balkans, and it was known as
    the powder keg of Europe.
  • Hotbed of Slav nationalism

  • Black Hand terrorists attack the Arch Duke
  • Bomb attempt fails in morning
  • Gavrilo Princip shoots Archduke and wife in the
  • Austrians blame Serbia for supporting terrorists.

Seal of the Black Hand group
Gavrilo Princip
Fighting begins
  • Soon after the murder Germany promised
    Austria-Hungary its support. Austria-Hungary
    demanded Serbia investigate the assassination.
    Serbia declined.
  • Austria-Hungary declared war on Serbia July 28,
    1914. Russia allied with Serbia. Germany declared
    war on Russia. Britain and France joined as well.
  • Germany declared war on neutral Belgium in hopes
    of using it to enter into France.

US Enters war
  • US attempted to stay neutral and Wilson
    encouraged neutrality.
  • However in 1914 1/3rd of Americans were foreign
    born. Many of these individuals supported their
    home countries though most sided with Britain and
  • 3 positions on war
  • 1) Isolationists- believed it was none of
    Americas business.
  • 2) Interventionists- felt US should intervene
  • 3) Internationalists- believed US should play a
    role and work towards peace but not enter the war.

Which side should the US pick?
Central Powers
  • Close cultural ties
  • Big business loaned much to allies
  • 11 million German-Americans
  • Irish-Americans hated Great Britain

US Exports to both sides
Why did it take the us so long to get involved?
1. Blockades
  • Britain blockaded (stopped) all German ships
    going to America
  • Germany announced a submarine war around Britain
  • In May, 1915 Germany told Americans to stay off
    of British ships
  • They could/would sink them

  • Lusitania torpedoed, sinking with 1200 passengers
    and crew (including 128 Americans)
  • Was eventually found to be carrying 4200 cases of

2. Unlimited Submarine Warfare
  • 1917 Germany announced unlimited submarine
    warfare in the war zone

3. Zimmerman Note
  • US intercepted a note from Germany to Mexico,
  • It promised Texas, New Mexico, and Arizona back
    in return for an alliance

  • Zimmerman Note the sinking of 4 unarmed
    American ships led to a declaration of war by the
    United States