• Franz Ferdinand is killed

    Franz Ferdinand is killed
    Archduke Franz Ferdinand, heir to the throne of the Austro-Hungarian Empire, and his wife are shot by Gavrilo Princip.
  • Austria-Hungary declares war on Serbia.

    Austria-Hungary declares war on Serbia.
    Enraged by the assassination of Franz Ferdinand, Emperor Franz Joseph of Austria-Hungary declares war on Serbia.
  • Germany declares war on Russia.

    Germany declares war on Russia.
    Declaring war on Russia, Germany mobilizes their armed forces to attack.
  • Germany declares war on France.

    Germany declares war on France.
    Two days after declaring war on Russia, Germany declares war on France, and hours later, France declares war on Germany.
  • The Battle of the Frontiers occurs.

    The Battle of the Frontiers occurs.
    The Battle of the Frontiers takes place. Over 27,000 French soldiers died on this one day.
  • Christmas Truce declared.

    Christmas Truce declared.
    Christmas Truce declared by soldiers in the trenches along the Western Front.