World War I Origins: Assassination, Alliances, and Front Development
The Assassination of Franz Ferdinand and Austria's Ultimatum
The murder of Archduke Franz Ferdinand led to Austria's declaration of war against Serbia, triggering World War I. Austria-Hungary, supported by the German Empire, issued an ultimatum on July 7, 1914, to Serbia. The demands included investigating the crime on Serbian territory, as Austria-Hungary believed the Pan-Slav organization Mano Negra (Black Hand) was connected with Serbian secret services.
Serbia's Response and Austro-Hungarian War Intentions
With Russian support, Serbia did not accept all the conditions imposed, specifically rejecting the participation of Austrian police in investigations on Serbian territory. This reaction fueled the Austro-Hungarian command staff, who felt...