15

Causes of World War I

By caitlin.hill
  • Austria-Hungary Takes Control of Bosnia

    Austria-Hungary Takes Control of Bosnia

    *Created Bosnian unrest
    *
  • The Triple Alliance is Formed

    The Triple Alliance is Formed

    *The Triple Alliance consisted of Germany, Austria-Hungary, and Italy.
  • The Triple Entente is Formed

    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

    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

    Austria-Hungary Declares War on Serbia

    *Caused by the killing of Franz Ferdinand
    *It was supposed to be a short war
  • Germany Invaded Belgium

    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

    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

    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

    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