Trifko Grabež society. For the next two years he spent most of his spare time with other nationalists who favoured a union between Bosnia and Herzegovina and Serbia. When it was announced that Archduke Franz Ferdinand, the heir to the throne of Austro-Hungarian Empire, was going to visit Bosnia and Herzegovina in June 1914, Colonel Dragutin Dimitrijević, the chief of the Intelligence Department in the Serbian Army and head of the Black Hand, sent seven men, Grabež, Nedeljko Čabrinović, Vaso Čubrilović, Cvjetko Popović, Danilo Ilić, Muhamed Mehmedbašić and Gavrilo Princip to Sarajevo to assassinate him. Each man was given either a revolver
Yugoslavism this we all become members of one united Jugo-slav nation. The assassination of Archduke Franz Ferdinand of Austria by Yugoslavist revolutionary Gavrilo Princip, a Serb associated with Young Bosnia, a group composed of mainly Serbs, but also Bosnian Muslims and Croats, marked the beginning of a militant nationalist activity by South Slavs against Austro-Hungarian rule. At his trial in 1914, Princip stated: "I am a Yugoslav nationalist, aiming for the unification of all Yugoslavs, and I do not care what form of state, but it must be free from Austria." The assassination of Franz Ferdinand however triggered resentment amongst those