Battle of Kolubara their respective commands, and the 5th and 6th armies were merged into a single 5th Army of 95,000 men. On 28 June 1914, Bosnian Serb student Gavrilo Princip assassinated Archduke Franz Ferdinand of Austria in Sarajevo. The assassination precipitated the July Crisis, which led Austria-Hungary to issue an ultimatum to Serbia on 23 July on suspicion that the assassination had been planned in Belgrade. The Austro-Hungarian government made the ultimatum intentionally unacceptable to Serbia, and it was indeed rejected. The Austro-Hungarians declared war on Serbia on 28 July and that same day the Serbs destroyed all bridges on the Sava
Sarajevo (2014 film) Sarajevo (2014 film) Sarajevo is a German/Austrian biographical film from 2014 and depicts the assassination of Archduke Franz Ferdinand of Austria. On the 28th June 1914, the Austro-Hungarian heir presumptive Archduke Franz Ferdinand of Austria-Este and his spouse Sophie, Duchess of Hohenberg are travelling through Sarajevo on the 525th anniversary of the Battle of Kosovo. As a result of the first attack on the Archduke's life, the Austrian examining magistrate Leo Pfeffer is given the task of capturing the person responsible for the attack. Whilst interrogating the assassin, Pfeffer finds out there has been a second attack on the Archduke