Young Bosnia and the Battle of Kosovo. Two notable organizations are referred to in connection with Young Bosnia: Narodna Odbrana and Black Hand. During a Serbian kangaroo court in French-occupied Salonika in 1916–17, Chief of Serbian Military Intelligence Dragutin Dimitrijević Apis testified that he had organized the assassination of Archduke Franz Ferdinand of Austria, in Sarajevo on 28 June 1914, (the assassin was Gavrilo Princip). In the process, he used not only his power over elements of the Serbian military, but also the Black Hand. Leaders of the Black Hand in turn had penetrated Narodna Odbrana and used that organization to infiltrate
Danilo Ilić Mehmedbašić, and Cvjetko Popović to assassinate Archduke Franz Ferdinand of Austria, which it that led directly to World War I. He and Gavrilo Princip were close friends. On Sunday, 28 June 1914, Franz Ferdinand and Sophie von Chotkow were assassinated by Gavrilo Princip. Princip and Nedeljko Čabrinović were captured and interrogated by the police. They held out, but Ilić, who was picked up on a routine check, eventually broke down under pressure and named his fellow conspirators. Muhamed Mehmedbašić managed to escape to Serbia but Veljko Čubrilović, Vaso Čubrilović, Cvjetko Popović and Miško Jovanović as well as Danilo Ilić were