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
Leopold Lojka as Ferdinand's car began to pull into it. Princip seized his chance and with his Model 1910 7.65 mm FN Browning in hand he lunged through the crowd. Lojka was attempting to reverse, and Gavrilo Princip shot and killed the Archduke, shooting him in the jugular vein, and his expectant wife, in the stomach. After the assassination, Lojka was given the task of sending three telegrams of apology: one to the Austro-Hungarian Emperor Franz Joseph, one to the German Emperor Wilhelm II, and one to the children of Archduke Franz Ferdinand. He also served as a witness for the prosecution