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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.