World War I

  • Ultimatum

    Austria issues an Ultimatum to Serbia. They tell serbia if they don't meet terms of Ultimatum then there will be war.
  • Archduke of Austria

    Archduke of Austria Franz Ferdinand and his wife Sophie were assasinated by Gavrilo Princep of black hand.
  • Accepts Ultimatum

    They accept the ultimatum but would like to change some of the agreements. Austria denies it and declares war on Serbia.
  • War

    Millions of soldiers marched off to war, thinking war was going to be short. The war is not short. It takes about 4 years.
  • Schieffen Plan

    Germany uses the schieffen plan. This was supposed to be quick. It turns into a stalemate on the western front.
  • Attacks

    Allies attacked Germans. They attacked the Germans northeast of paris in the valley of the marne River.
  • Defeat

    Austrians and Germans defeated the Russians. Then drove them eastward.
  • Trenches

    Opposing armies on the western front had dug trenches. These are paralel ditches for miles and miles. These protected the armies during wars.
  • Gallipoli campaign

    Gallipoli campiaign - britain, Austria, New Zealand and france attacked west side of straits of dardenelles near constantinople.
  • Gave up

    Allies gave up on the gallipoli campaign. They gave up on this after 250,000 casualties.
  • Russia

    Russia is suffering from a lot of political turnoil. There war effort is on the verge of collapsing.
  • British and France

    British forces try to help the french by attacking the germans at the battle of the somme. They suffer more than half a million casualties.
  • Announcment

    Germans announce that they will bring back there process of Unrestricted Submarine policy. They will sink any ships aroun british waters withouth warning,
  • Zimmerman

    British accepts the zimmerman telegram.
  • Russia

    Civil unrest in Russia is bringing Tsar Nicholas's goverment to brink of collapse.
  • Wilson

    President wilson asks congress to declare war on the side of the allies.