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How did World War I begin?

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Presentation on theme: "How did World War I begin?"— Presentation transcript:

1 How did World War I begin?
Militarism Alliances Imperialism Nationalism Assassination of Archduke Franz Ferdinand Sinking of the Lusitania Zimmerman Note

2 The MAIN Causes MILITARISM- aggressive build up of armed forces, as preparation for war ALLIANCE SYSTEM- countries agreed to defend each other if attacked IMPERIALISM- caused competition for new markets and colonies in Africa, Asia, and the Pacific NATIONALISM- having pride in your country, willing to defend your nation

3 Alliances to know: Central Powers (formerly Triple Alliance) Germany Austria-Hungary Ottoman Empire Bulgaria Triple Entente (later known as the Allies) Great Britain France Russia United States Italy

4 Assassination of Archduke Franz Ferdinand
June The Archduke, heir to the Austrian throne, was visiting Bosnian capital of Sarajevo Serbian nationalist Gavrilo Princip shoots and kills Ferdinand and wife Sophia Austria-Hungary declares war on Serbia How did this lead to WWI? Which of the MAIN causes apply?


6 Sinking of the Lusitania
May 7, 1915 British liner Lusitania sank by German U-boat (Unterseeboot) aka submarine 1,198 die, 128 Americans among the dead US public angry, turns against Germany Germany defends sinking Lusitania; said ship was carrying ammunition Germany continues unrestricted submarine warfare How long before US declares war on Germany? Some historians ask, “Is the sinking of the Lusitania really a cause?”


8 Zimmermann Note A German telegram sent to German ambassador in Mexico and intercepted by British agents Telegram proposed an alliance between Mexico and Germany Promised that if war w/ US broke out; Germany would support Mexico Mexico would get back “lost” territory in TX, New Mexico, and Arizona as a reward

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