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January – September
T.E. Lawrence leads Arab guerrillas in successful campaign against Turkish positions in Arabia and Palestine
January 8
US President Woodrow Wilson makes “Fourteen Points” speech to Congress
February 11
US President Woodrow Wilson makes “Four Principles” speech to Congress
March 3
Soviet Russia concludes separate peace negotiations in treaty of Brest-Litovsk
March 21
Germany launches Spring push, eventually mounting five major offensives against Allied forces, starting with the Battle of Picardy against the British
March 26
Doullens Agreement gives General Ferdinand Foch “co-ordinating authority” over the Western Front
April 9
Germany launches second Spring offensive, the Battle of the Lys, in the British sector of Armentieres
April 14
Foch appointed Commander-in-Chief of Allied forces on Western Front
May 25
German U-boats appear in US waters for first time
May 27
Third German Spring offensive, Third Battle of the Aisne, begins in French sector along Chemin des Dames
May 28
US forces (28th Regiment of 1st Division) victorious in first major action, Battle of Cantigny
June 6
US 3rd Division captures Bouresches and southern part of Belleau Wood
June 9
Germans launch fourth Spring offensive, Battle of the Matz, in French sector between Noyan and Montdider
June 15
Italians prevail against Austro-Hungarian forces at Battle of Piave
July 6
US President Woodrow Wilson agrees to US intervention in Siberia
July 15
Final phase of great German Spring push, the Second Battle of Marne, begins
July 16-17
Former Tsar Nicholas II, his wife, and children, are murdered by the Bolsheviks
July 18
Allies counterattack against German forces, seizing initiative
August 3
Allied intervention begins at Vladivosto
August 8
Haig directs start of successful Amiens offensive, forcing all German troops back to the Hindenburg Line; Ludendorff calls it a “black day” for German army
September 12
US forces clear the St.-Mihiel salient, during which the greatest air assault of the war is launches by the US
September 19
Start of British offensive in Palestine, the Battle of Megiddo
September 26
Battle of the Vardar pits Serb, Czech, Italian, French and British forces against Bulgarian forces
September 26
Meuse-Argonne offensive opens; the final Franco-American offensive of the war
September 27 – October 17
Haig’s forces storm the Hindenburg Line, breaking through at several points
September 29
Bulgaria concludes armistice negotiations
September 28 – October 14
Belgian troops attack at Ypres
October 3-4
Germany and Austria send peace notes to US President Woodrow Wilson requesting an armistice
October 17 – November 11
British advance to the Sambre and Schledt rivers, taking many German prisoners
October 21
Germany ceases unrestricted submarine warfare
October 27
Erich Ludendorff resigns
October 30
Turkey concludes an armistice with the Allies
November 3
German fleet mutinies at Kiel
November 3
Trieste falls to the Allies; Austria-Hungary concludes an armistice
November 7-11
Germany negotiates an armistice with the Allies in Ferdinand Foch’s railway carriage headquarters at Compiegne
November 9
Kaiser Wilhelm II abdicates
November 10
Kaiser Wilhelm II flees to Holland
November 10
German republic is founded
November 11
Armistice day; fighting ceases at 11am