Causes of WWI

  • Triple Alliance is Formed

    Triple Alliance is Formed
  • The Triple Entente is Formed

    The Triple Entente is Formed
    -Alliance between Britain, France, and Russia
    - At the Start of WWI all members entered as allies
  • Austria- Hungary Takes Control of Bosnia

    Austria- Hungary Takes Control of Bosnia
  • Archduke Franz Ferdinand is Assassinated in Sarajevo

    Archduke Franz Ferdinand is Assassinated in Sarajevo
  • Austria-Hungary Declares War on Serbia

    Austria-Hungary Declares War on Serbia
    -It was the start of WWI
    - Began in Europe but quickly spread through the whole world
  • Germany Invades Belgium

    Germany Invades Belgium
  • A German U-Boat Sinks the Lusitania

  • The First Battle of the Somme Begins

    The First Battle of the Somme Begins
  • The Zimmerman Note is Discovered

  • The United States Declares War on Germany