Historical Organization
Austria-Hungary
Austria-Hungary
Details
Organization Timeline
Austria-Hungary annexes Bosnia and Herzegovina
📅 6 October 1908The annexation of Bosnia and Herzegovina provoked protests in Serbia and Russia and intensified conflict over the Balkans. The crisis showed how imperial rule, nationalism, and great-power rivalry...
Assassination in Sarajevo triggers the July Crisis
📅 28 June 1914Archduke Franz Ferdinand and Sophie Chotek were assassinated by Gavrilo Princip, a Bosnian Serb nationalist. The killing became the trigger for a diplomatic crisis, but the wider war grew from...
Austria-Hungary sends Serbia an ultimatum
📅 23 July 1914Vienna delivered a severe ultimatum to Serbia, including demands that Serbian officials permit Austro-Hungarian participation in the investigation. Serbia accepted most demands but not all....
Austria-Hungary declares war on Serbia
📅 28 July 1914Austria-Hungary declared war after receiving Germany’s support. Mobilizations and declarations followed across Europe. The chain was not an automatic mechanical effect of alliances: political...
China declares war on Germany and Austria-Hungary
📅 14 August 1917China entered the war after years of pressure and in hopes of recovering German-held Shandong and strengthening its standing in the postwar settlement. Chinese leaders also sought to end unequal...
Treaty of Brest-Litovsk removes Russia from the war
📅 3 March 1918Soviet Russia signed a harsh peace treaty with the Central Powers, surrendering extensive territories and populations. The treaty ended fighting on the Eastern Front, but its terms were overturned...
Villa Giusti armistice ends Austro-Hungarian fighting
📅 3 November 1918The armistice signed near Padua ended Austria-Hungary’s participation in the war and accelerated the empire’s disintegration. National councils declared new states, while the settlement left border...