causes of world war i...identify (classify) causes of the war, include: nationalism, entangling...
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Causes of World War I
SSWH17Demonstrate (Determine) an
understanding of long-term causes of World War I and its global impact.
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■a. Identify (classify) causes of the war, include: nationalism, entangling alliances, militarism, and imperialism.
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■ Text
From 1914 to 1919, World War I erupted in Europe
This “Great War” was the largest, most destructive
war the world had yet seen
WWI was a global war that altered the course
of the 20th century
What caused World War I?
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From 1870 to 1914, a number of developments gradually increased tensions among the European
powers that led to the outbreak of World War I
The
MILITARISMALLIANCESIMPERIALISM
NATIONALISM causes of World War I
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MILITARISMThe Industrial Revolution
led to large, advanced militaries in Europe
Europeans believed that to be great, nations had to have strong militaries
As a result, an arms race began among European nations, especially between Britain & Germany
Nations glorifiedmilitary power &
kept an armyprepared for war (called militarism)
Having a strong army increased
patriotism among citizens
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ALLIANCESGrowing rivalries among nations led to the
formation of two military alliances that threatened to draw European nations into war
Germany, Italy, & Austria-Hungary made up the Triple Alliance
England, France, & Russia formed
the Triple Entente
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IMPERIALISMEuropean nations competed fiercely
for colonies in Africa & Asia
Competition for colonies often pushed Europeans
to the brink of war
This competition increased European rivalry & mistrust
Germany & France almost went to war three times
over Morocco
Germany, England, Russia
argued over building a
railroad in India
England & France
argued over rights to the
Sudan
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NATIONALISM
Austrian national poster, 1900
Rivalries due to militarism & imperialism
increased nationalism among European powers
British propaganda poster, 1897
European rivals tried to maintain a balance of
power while also trying to overpower each other
“European Balance of Power, 1914”
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NATIONALISMWhile nationalism unified
people in the powerful nations, it was dividing
people in weakening empires
No region was more tense in the years
before World War I than the Balkans
Serbia, Greece, Albania, Bulgaria, & Romania
broke from the Ottoman Empire to create new nations
Slavic people in Serbiawanted to unify all Slavs
but Austria-Hungary opposed giving up the
largely Slavic territories Bosnia & Herzegovina
The Balkans became a “powder keg” waiting for a spark to blow up
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■b. Describe (define) conditions (situations) on the war front for soldiers, include: new technology and war tactics (strategies).
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When the war began, Germany’s biggest problem was the potential of fighting on two fronts
Germany’s solution was the Schlieffen Plan which involved quickly defeating
France in the West…
…then sending troops to the East before Russia was fully
mobilized for war
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■ Text
Europe before the war
The Allied Powers
The Central Powers
Europe at the outbreak of World War I
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The Schlieffen Plan seemed to be working when the German army marched through
Belgium & France, within miles of Paris
But, English & French troops saved Paris at the Battle of
the Marne…
…Meanwhile, Russia mobilized faster than
expected, so Germany had to divert troops from France
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Because the Schlieffen Plan failed, the Central Powers were forced to fight a two-front war
The fighting between Germany & France was
known as the Western Front
The fighting between Germany & Russia was known as the
Eastern Front
By 1915, the war settled into a stalemate as each
side fortified their positions with trenches
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Soldiers going “over the top”
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The soldiers had very little decent food, and what food they had was often attacked by rats.
These rats were the size of small rabbits and badgers because they had fed on the decomposing bodies of dead soldiers.
Trench Foot
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New weapons were invented to try to gain an advantage & win the war
Machine guns
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New weapons were invented to try to gain an advantage & win the war
Long-range artillery
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New weapons were invented to try to gain an advantage & win the war
Tanks
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New weapons were invented to try to gain an advantage & win the war
Airplanes & zeppelins
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New weapons were invented to try to gain an advantage & win the war
Flamethrowers & grenade launchers
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New weapons were invented to try to gain an advantage & win the war
Poison gas
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New weapons were invented to try to gain an advantage & win the war
Submarines
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New weapons killed soldiers more effectively;During World War I, 8.5 million soldier died &
21 million were wounded
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To keep Germany from trading with other nations, Britain used its navy to blockade Europe
Germany responded by using unrestricted submarine warfare to attack the British navy
& any merchant ships supplying the Allies
German u-boat attacks played a role in bringing the USA into World War I
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Fighting on the Western Front slowed to a stalemate as neither side could gain an advantage
During the 10 month Battle of Verdunin 1916, 1 million
soldiers were killed or wounded
Another 1 million soldiers were killed or wounded at the Battle of Somme
Despite the deaths, neither the Allies or
Central Powers gained an advantage
after these battles
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Russia was not as industrialized as the rest of Europe & failed to produce enough weapons or food
Millions of Russian soldiers & civilians died
during the war
By 1917, Russia was on the brink of collapse
Russian women training for combat
On the Eastern Front, the Russian army was struggling to hold on against the German military
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The stalemate on the Western & Eastern Fronts turned World War I into a war of attrition where
each side tried to out-produce & outlast the enemy
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Turkish CavalrySikh British Soldiers in IndiaChinese Soldiers
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When World War I began in 1914, the United States remained neutral…
…But, the USA was pulled into the war by 1917
As a neutral nation, the USA was trading with
the Allies during the war
Germany’s policy of unrestricted submarine
warfare led to attacks on U.S. merchant ships & British passenger ships
President Woodrow Wilson demanded
“freedom of the seas” but Germany refused
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Americans were outraged in May 1915 when a German u-boat sank the British ship Lusitaniakilling 1,200 people including 128 Americans
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America’s anger with Germany increased in
1917 after the discovery of the
Zimmerman Telegram
Germany knew that u-boat attacks would eventually bring the
USA into war Germany proposed
that Mexico attack the USA in exchange for the return of Texas,
New Mexico, Arizona Americans were
outraged
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On April 2, 1917, the United States declared
war on Germany & entered the war
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The arrival of millions of American soldiers in 1918
gave a boost the Allies
But in November 1917, Russia signed a peace &
exited the war
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By 1918, the Central Powers were running out of supplies &
tried a massive attack into France
But, the Allies halted the attack
& pushed back
Bulgaria, Ottoman Empire, & Austria-Hungary surrendered in October 1918
On November 11, 1918 Germany agreed to an armistice (ceasefire) & World War I finally
came to an end
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■c. Explain (clarify) the major decisions made in the Versailles Treaty, include: German reparations and the mandate system that replaced Ottoman control.
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In 1919, representatives from 32 nations attended the
Paris Peace Conference to write a treaty to end the war
The conference was led by the “Big Four”: Britain, France, Italy, & the United States
French Premier George Clemenceau
U.S. President Woodrow Wilson
British Prime Minister David Lloyd George
Italian Prime Minister Vittorio Orlando
Neither Germany nor any of the Central Powers were allowed to attend…Russia could not
attend because they already quit World War I
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U.S. President Woodrow Wilson
Italian Prime Minister Vittorio Orlando
Creating a treaty would not be easy because the major powers had different agendas
French Premier George Clemenceau
British Prime Minister David Lloyd George
Britain & France wanted to weaken
Germany so it could never go to war again
Britain & France wanted Germany to accept full
blame, pay reparations, & lose all overseas colonies
U.S. President Woodrow Wilson disagreed the these harsh punishments for Germany
President Wilson presented his own peace proposal known
as the Fourteen Points
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The major provisions of the Versailles Treaty included:
A League of Nations that would serve as an
international organization to keep peace among nations
The League also included an Court of International Justice
to settle disagreements
The League covenant included an agreement
that all member nations would work
together to stop future acts of aggression
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The terms of the treaty severely punished Germany
Germany had to give up land in
Europe & all of its overseas colonies
Germany was forced to sign the “war guilt clause” accepting all
blame for the war & pay $33 billion in reparations to the Allies
The German military was reduced to 100,000 troops, 6 warships, no submarines, & could not manufacture war equipment
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Central Europe was redrawn to reduce the power of the Austro-Hungarian Empire
Land was taken from Germany to create Poland; The German-French border was demilitarized to avoid a future invasion
New nations were created from territories that Russia gave
up when it left the war early
Ottoman Empire was divided; Britain & France gained mandates in the
Middle East
The mandates gave Britain & France control over oil
resources in the Middle East
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On June 28, 1919, Germany & the major Allied Powers signed the Treaty of Versailles
and World War I officially came to an end
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Most nations celebrated the official
end of World War I
But, Germans protested the harsh terms & resented their
gov’t for signing the treaty
“Down with the brutal peace!”
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In the United States, reactions to the Treaty of Versailles were mixed
According to the U.S. Constitution,
only the Senate can approve treaties
Many Senators fearedthat signing the treaty & joining the League would force America
to become involved in future wars
Members of the League of Nations (in black)As a result, the USA
never signed the treaty or joined the League of Nations