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Austria-Hungary Takes Control of Bosnia
Took control in 1878 and accused Servia of subverting its rule over Bosnia. Heir to the Austrian throne the Archduke Franz Ferdinand visited Bosnia visited Serbia, when he got there he was shot. He was shot by a member of the Black Hand which was an organization promoting Serbian nationalism. -
The Triple Entente is formed
France, Birtian, and Russia all formed the Triple Entente. The Triple Entente was also knowon as the Allies. The alliance provided a measure of international security because nations were reluctant to disturb the balance of power. -
The Triple Alliance is Formed
Consisted of Germany, Austria-Hungary and Italy. Were later known as the Central Powers. The alliance provided a measure of international security because nations were reluctant to disturb the balance of power. -
Archduke Franz Ferdinand is Assassinated in Sarajevo
The heir to the Austiran throne was visitning the Bosnian capital of Sarajevo. He was shot by the Serbian nationalist Gavrilo Princip. The differeant alliance systems brought many countries into the war -
Austria-Hungary Declares War on Serbia
Thought to be a short war with Servbia to show them that they can't kill the Austrian-Hungary heir. The alliance systems pulled the other nations into the war. This was the start of World War 1 -
Period: to
World War 1
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Germany Invaded Belgium
Germany was obligated by the triple alliance to support Austria-Hungary. After Austira-Hungary declared war on Russia, Germany declared war on Fance, and invaded Belgium, then Britain declared war on Germany and Austira-Hungary. They followed a strategy known as the Schlieffen Plan to invade Belgium. The plan was to send half their troops to Belgium and half to France and then the two would meet up to defeat Russia. -
A German U-Boat Sinks the Lusitania
Britian was blockading Germany and Germany conterblockaded with the U-boats. It was sunk off the suothern coast of Ireland. 128 of the people were Americans. This set the U.S. against Germany and the Central Powers. -
The First Battle of the Somme Begins
Lasted until mid November. British suffered 60,000 casualities on the first day. They used trench warfare to fight this battle -
The Zimmerman Note is Discovered
A telegram from the German foreign minister to the ambassador in Mexico that was intercepted by British agents. The telegram proposed an alliance between Mexico and Germany and promised that if war with the U.S. brok out Germany would support Mexico in recoverting its lost territories. -
The United States Declares War on Germany
When the U-boats sunk the Lusitania 128 Americans were on the ship and so America was outraged. The Zimmerman note was intercepted and this further angered Americans. Fiaally after the Russian government was replaced with a representative Wilson declared war on Germany and joined Russia, France and England.
