• archduke assassination

    archduke assassination
  • ultimatum

    ultimatum
    Serbia must end all anti Austrian activities
    48 hours to meet terms
  • austria declares war on serbia

    austria declares war on serbia
  • world war 1 begins

    world war 1 begins
    ww1 begins between the triple alliance and the Triple Entente
  • the schliefflen plan

    the schliefflen plan
    germany ivaded france and belgium
  • Germans fire gas

    Germans fire gas
  • sinking of the lusitania

    sinking of the lusitania
    Germans sink British ship
  • The Sussex pledge

    The Sussex pledge
    The Sussex was sunk.
    Ultimatum
  • wilson declarwes war

    wilson declarwes war
    woodrow wilson gets involved in the warzone
  • Armistice Day

    Armistice Day
    the war ends