Essential Question What caused World War I From

■ Essential Question: –What caused World War I?

From 1914 to 1919, World War I erupted in Europe ■ Text What caused World War I? This “Great War” was the WWI was a global war largest, most destructive that altered the course war the world had yet seen of the 20 th century

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 MILITARISM ALLIANCES IMPERIALISM NATIONALISM causes of World War I

MILITARISM The Industrial Revolution Europeans believed that led to large, advanced to be great, nations had militaries in Europe to have strong militaries As a result, an arms race began among European nations, especially between Britain & Germany Nations glorified military power & kept an army prepared for war (called militarism) Having a strong army increased patriotism among citizens

IMPERIALISM Germany European & nations England competed fiercely Germany, France almost for colonies & France in Africa &England, Asia Russia went to warfor colonies argued over Competition threepushed times Europeans rights to the building a often over railroad in India to. Morocco the brink of war. Sudan This competition increased European rivalry & mistrust

ALLIANCES Growing Germany, rivalries Italy, & among nations England, led. France, to the Austria-Hungary formation of two made military&alliances Russia formed that threatened up the Triple to draw Alliance European thenations Triple Entente into war

NATIONALISM Rivalries due to militarism & imperialism increased nationalism among European powers European rivals tried to maintain a balance of power while also trying to overpower each other Balance of Power, 1914” British propaganda“European poster, 1897 Austrian national poster, 1900

NATIONALISM No region was more While unified Thenationalism Balkans became a tense in the years people in the powerful “powder keg” waiting before World War I nations, it was for a spark to dividing blow up than the Balkans people in weakening empires Serbia, Greece, Albania, Bulgaria, & Romania broke from the Ottoman Empire to create new nations Slavic people in Serbia wanted to unify all Slavs but Austria-Hungary opposed giving up the largely Slavic territories Bosnia & Herzegovina

The Outbreak of World War I Serbians vowed On June 28, 1914, the Austroto take Bosnia & Hungarian Archduke Franz Herzegovina from Ferdinand & his wife were Austria-Hungary assassinated by a Serbian terrorist The assassin Gavrilo Princip

The Outbreak of World War I On July 23, Austria-Hungary issued an ultimatum to Serbia: turn over conspirators & allow an investigation…OR…go to war When Serbia balked at some of the terms, Austria-Hungary declared war on June 28, 1914 Russia had a large population of Slavs & was an ally of Serbia; Russia moved troops to the Austrian border These events set off a chain reaction that started World War I

World War 14, Begins Austria-Hungary On August 1914, England On August 1, 1914, On August 3, declared 1914, Russia mobilized for war declared war on Serbia war on Germany & Italy backed out of its Germany declared war …and joined Germany declared war to protect Serbia & itson ally Russia Austria-Hungary agreement with Germany Russia the Allies on France & Austria-Hungary… On July 28, 1914, Serbia declined the ultimatum World War I had begun

During the war Germany & Austria-Hungary became the Central Powers; They were joined by Bulgaria & the Ottoman Empire The members of the Triple Entente became known as the Allied Powers and eventually were joined by…

…many nations throughout the world