> CHRONOLOGY

1914

  • U.S. Marines occupy Veracruz, Mexico.

  • Archduke Franz Ferdinand assassinated.

  • Austria-Hungary declares war on Serbia.

  • Germany attacks Russia and France.

  • Great Britain declares war on Germany.

1915

  • German U-boat sinks Lusitania.

1916

  • Pancho Villa attacks Americans in Mexico and New Mexico.

  • Wilson reelected.

1917

  • Zimmermann telegram intercepted.

  • United States declares war on Germany.