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WORLD WAR I 1914-1919. “The Great War to End all Wars”. Causes of World War I. Imperialism – competition for overseas empires Militarism – build up of a countries’ military. Causes of World War I. Nationalism – pride in one’s country Secret Alliances among European Nations. The Spark.
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WORLD WAR I 1914-1919 “The Great War to End all Wars”
Causes of World War I • Imperialism – competition for overseas empires • Militarism – build up of a countries’ military
Causes of World War I • Nationalism – pride in one’s country • Secret Alliances among European Nations
The Spark • Austrian Archduke Francis Ferdinand was assassinated by a Bosnian rebel
The Spark Austria-Hungary declared war on Bosnia and Serbia
The Spark • Secret Alliances caused all of Europe to get into conflict
Central Powers Germany Austria-Hungary Ottoman Empire Allied Powers France Great Britain (U.K.) Russia Serbia Two Sides
U.S. Returns to Isolationism • “America would not get involved in an European War” – President Woodrow Wilson
U.S. Returns to Isolationism • Government did not want to upset immigrants
U.S. Returns to Isolationism U.S. supported and sent weapons to Allied countries
Why did America Join the War? • German U-boats (submarines) were sinking US trade ships
Why did America Join the War? • Zimmerman Note • German plan to have Mexico declare war on U.S. • helped generate support for war from American citizens
Why did America Join the War? • U.S. cruise ship , The Luisitania, was sank by German U-boats • 1,260 people killed.
Why did America Join the War? • April 2, 1917, U.S. declares war Central Powers
New Weapons + Old Fighting = Massive Destruction • British style, straight line fighting was suicide
New Weapons + Old Fighting = Massive Destruction • New Weapons • Machine guns, poison gas, airplanes, artillery cannons, flame throwers, tanks
New Weapons + Old Fighting = Massive Destruction • Trench Warfare became the new style of fighting
US Involvement turns the War • US added fresh troops and resources to Allies • Allies started to win when US got involved • Russia pulls out of war because of unrest in their country
Russian (Bolshevik) Revolution • Vladimir Lenin overthrew democratic gov’t in Russia • He set up a government called communism
Russian (Bolshevik) Revolution • US and Russia became enemies after Communist takeover
Allies Claim Victory • Treaty of Versailles officially ended war in 1919 • Europe was in ruins • Infrastructure was destroyed • 8 million dead, 21.5 million wounded • US only had 250,000 dead and wounded