Events
Assassination of the ArchdukeAustria-Hungary receives "blank cheque" support from GermanyAustria-Hungary sends Serbia an ultimatumSerbia accepts all conditions of the ultimatum, except for the final oneAustria-Hungary declares war on SerbiaRussia mobilizes troops in support of SerbiaGermany sends Russia an ultimatum demanding the demobilzation of their troopsFrance mobilzes in support of RussiaGermany declared war on France, invades France via Belgium,Britain sends an ultimatum to Germany ordering them to retreat from FranceBritain declares war on GermanyTriple Aliance formedTriple Entente formedDual Alliance formedThe U.S. joins WW1Italy switches alliances, declares war on Austria-HungaryItaly issues a Declaration of Neutrality.Periods
World War One
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