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Montenegro declares war on Austria-Hungary
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Austro-Hungarians declared war on Serbia and subsequently invaded
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Assassination of Archduke Franz Ferdinand of Austria
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Period: to
World War I
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Austria-Hungary seeks German support for a war against Serbia
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Austria-Hungary sends an ultimatum to Serbia
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Austria-Hungary declares war on Serbia. Russia mobilizes
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Began the World War
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Germany declares war on Russia
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Germany invades Luxembourg.
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The United Kingdom declares war on Germany
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Austria-Hungary declares war on Russia.
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Austria-Hungary declares war on Russia.
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France declares war on Austria-Hungary.
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The Germans occupy Brussels.
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Japan declares war on Germany.
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Battle of Zanzibar, German naval victory
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Bombardment of Papeete German Light Cruiser Emden attacks Madras
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Russia declares war on the Ottoman Empire.
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The United Kingdom begins the naval blockade of Germany.
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France and the United Kingdom declare war on the Ottoman Empire.
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Fighting begins at Noyon.
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The Russian offensive in the Carpathians begins. It will continue until April 12.
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First Zeppelin raid on Great Britain
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Germany begins unrestricted submarine warfare against merchant vessels
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British and French naval attack on the Dardanelles. The Gallipoli Campaign begins
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The Siege of Przemyśl ends. The Russians capture the fortress.
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Allied forces land on Gallipoli, landing at Anzac Cove and Cape Helles
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First Battle of Krithia. The Allied advance is repelled.[
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The Gorlice-Tarnów begins: the German troops under General Mackensen break through the Russian lines in Galicia.
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The British liner Lusitania is sunk by a German U-boat
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Third Battle of Krithia. Yet another Allied failure.
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Mackensen breaks again through the Russian lines in the Lviv area.
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The Germans occupy Warsaw.
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Battle of the Nek, a phase of the August Offensive.
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Germany suspends unrestricted submarine warfare.
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A French army lands in Salonika and, with the help of British and Italian troops, sets up a Balkan Front.
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The First Siege of Kut, Mesopotamia, by the Ottomans begins
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Togoland is divided into British and French administrative zones.
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Douglas Haig replaces John French as commander of the British Expeditionary Force.
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The Gallipoli Campaign ends in an Allied defeat and an Ottoman victory
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The Gallipoli Campaign ends in an Allied defeat and an Ottoman victory
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The United States of America declares war on Germany
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Battle of Lagnicourt, part of the Second phase of the Second Battle of Arras.
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The British forces under siege at Kut surrender to the Ottomans, first siege of Kut ends.
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The Brusilov Offensive begins
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The Battle of the Somme begins
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Battle of Mlali.
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The Central Powers create a unified command.
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The Central Powers create a unified command.
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The Germans occupy Bucharest. The capital of Romania moved to Iaşi.
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Battle of Magdhaba in the Sinai peninsula
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Togoland is divided into British and French administrative zones.
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Battle of Rafa. The British drive the Ottomans out of Sinai.
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The German Foreign Secretary Arthur Zimmermann sends a telegram to his ambassador in Mexico, instructing him to propose to the Mexican government an alliance against the United States.
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Greece: King Constantine I abdicates
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The Third Battle of Ypres (aka Battle of Passchendaele) begins.
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Battle of Broodseinde (part of the final phases of the Battle of the Third Battle of Ypres).
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Battle of Broodseinde (part of the final phases of the Battle of the Third Battle of Ypres).
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Battle of Buqqar Ridge.
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Russia signs a preliminary armistice with Germany.
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Woodrow Wilson outlines his Fourteen Points.
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Germans capture Kiev.
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Royal Air Force founded by combining the Royal Flying Corps and the Royal Naval Air Service.
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Treaty of Bucharest between Romania and the Central Powers. It will never be ratified.
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Action of Arsuf.
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Battle of Hamel.
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The Tsar and his family were shot early in the morning by the Bolsheviks.
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The British capture Jisr ed Damieh in the Battle of Sharon.