Events
Austria Hungary declared war on SerbiaRussia mobilizesGermany declares war on RussiaGermany declares war on France-Germany invaded then declared war on Belgium
-Britain declares war on Germany-A-H declares war on Russia
-Serbia declares war on GermanyGB declares war on A-HUS declares neutralityJapan declares war on GermanyBattle of the Marne Begins (First use of cars to transport troops, interceptive radio)Russia declares war on Ottoman EmpireSerbia declares war on Ottoman EmpireBritain and France declare war on Ottoman EmpireUnofficial Christmas TruceFirst Zeppelin raid on Britainfirst use of poison gas by GermansGermany begins submarine warfare with BritainDardanelles Campaign begins-Second Battle of Ypres
-Treaty of London (Entente-Italy)RMS Lusitania sunk by U-boatItaly declares war on A-HItaly declares war on Ottoman EmpireBulgaria joins Central Powers by declaring war on SerbiaAllied troops enter MesopotamiaConscription introduced in BritainBattle of Verdun begins (largest and longest battle)British forces surrender to Turkish forces in MesopotamiaGerman submarine warfare suspendedBattle of Jutland begins (largest naval battle)Start of Brusilov OffensiveBattle of the Somme beginsRomania declares war on Central PowersItaly declares war on GermanyBritish use first tanks at the SommeBolsheviks overthrow Russian governmentGermany’s unrestricted submarine warfare beginsGermans Zimmermann telegram to Mexico, intercepted by BritainUS severs diplomatic relations with GermanyStart of Russian RevolutionBritish seize control of MesopotamiaUS declares war on GermanyWidespread mutiny in French ArmyFirst bombing of London by GermansFirst American troops land in FranceGreece declares war on the Central PowersOctober Revolution, Bolsheviks seize power in RussiaArmistice signed between Central Powers and new Russian governmentBritain captures Jerusalem from TurkeyWoodrow Wilson's 14 pointsThe Treaty of Brest-Litovsk signed between Russia and Germany (Russia out of war)Marshall Foch appointed Allied Commander on Western FrontGermany begins offensive in FlandersSecond Battle of the Marne started. The start of the collapse of the German armyGermany asks Allies for armisticeGermany signs armistice in Compiegne, France with AlliesUS declares war on Austria-HungaryFrance declares war on A-HA-H declares war on BelgiumOttoman Empire joins the warIndian soldiers join warFirst use of U-boat by GermansFirst aerial bombing of London by GermansRussian retreatGerman gains air supremacyThe Germans captured Warsaw from the RussiansBritain declares war on BulgariaFrance declares war on BulgariaRussia and Italy declares war on BulgariaAllies evacuate GallipoliGermany declares war on PortugalAH declares war on PortugalBulgaria declares war on RomaniaBucharest falls to Austria-HungarBritain France and US recognize new government of RussiaLiberia declares war on GermanyChina declares war on Central PowersBrazil declares war on GermanyPeriods
Trench warfare beginsBritish navy opposes all shipping importsJanuary 8--Woodrow Wilson's 14 points
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