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
Bogdan Žerajić action brought Young Bosnia to the public attention. Žerajić's attempt of assassination had a significant influence on young people of Bosnia and Herzegovina. After this attempt new revolutionary circles were established in Sarajevo, Mostar, Tuzla and Banja Luka. An evening before the assassination of Archduke Franz Ferdinand of Austria, Gavrilo Princip, Čabrinović and Ilić visited the grave of Žerajić for the last time. Žerajić's proclamation "He who wants to live, let him die. He who wants to die, let him live", was quoted by Gavrilo Princip in one of the songs he wrote (). The official press in Bosnia and