Greater Serbia the Kingdom of Serbia retreated from Durrës in April 1913 under pressure of the naval fleet of Great Powers, but it remained in other parts of Albania for the next two months. The secret military society called Unity or Death, popularly known as the Black Hand, headed by Serbian colonel Dragutin Dimitrijević Apis, which took an active and militant stance on the issue of a Greater Serbian state. This organization is believed to have been responsible for numerous atrocities following the Balkan Wars in 1913. In 1914, Young Bosnia member Gavrilo Princip assassinated Archduke Franz Ferdinand in Sarajevo, which set
Young Bosnia the arms and assassins into Sarajevo. ""The political union of the Yugoslavs [..] was my basic idea [..] 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""<br>-Gavrilo Princip during his trial Claimed members of Young Bosnia who participated in the assassination were: An evening before the assassination of Archduke Franz Ferdinand, Princip, Čabrinović and Ilić visited the grave of Bogdan Žerajić for the last time. Žerajić's proclamation "He who wants to live, let him die. He who wants to die, let