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Austria-Hungary Takes Control of Bosnia
*Created Bosnian unrest
* -
The Triple Alliance is Formed
*The Triple Alliance consisted of Germany, Austria-Hungary, and Italy. -
The Triple Entente is Formed
*Was formed because of the Triple Alliance
*France, Britain, and Russia were a part of this alliance -
Archduke Franz Ferdinand is Assassinated in Sarajevo
*He was assassinated by a Serbian terror group called the Black Hand
*This was the short-term cause of the start of WWI -
Austria-Hungary Declares War on Serbia
*Caused by the killing of Franz Ferdinand
*It was supposed to be a short war -
Germany Invaded Belgium
*They were following a strategy known as the Schlieffen Plan
*This plan called for a holding action against Russia, combined with a quick drive through Belgium to Pars -
A German U-Boat Sinks the Lusitania
*Of the 1,198 persons that died, 128 were Americans
*The Germans defended their action on the grounds that the liner carried ammunition -
The First Battle of the Somme Begins
*It lasted until mid-November
*The British suffered 60,000 casualties the first day alone -
The Zimmermann Note is Discovered
*This was a telegram from the German foreign minister to the German ambassador in Mexico that was intercepted by British agents -
The United States Declares War on Germany
