Causes of World War I corrective." British Diplomat Arthur Nicolson wrote in May 1914, “Since I have been at the Foreign Office I have not seen such calm waters.” On 28 June 1914, Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were shot dead, by two gun shots in Sarajevo by Gavrilo Princip, one of a group of six assassins (five Serbs and one Bosniak) coordinated by Danilo Ilić, a Bosnian Serb and a member of the Black Hand secret society. The assassination is significant because it was perceived by Austria-Hungary as an existential challenge
Yugoslavs constructed the type of single Yugoslav civilization-the final and most important goal of our country." On 28 June 1914, Gavrilo Princip shot and killed Archduke Franz Ferdinand, the heir to the Austrian throne, and his wife, in Sarajevo. Princip was a member of Young Bosnia, a group whose aims included the unification of the Yugoslavs and independence from Austria-Hungary. The assassination in Sarajevo set into motion a series of fast-moving events that eventually escalated into full-scale war. After his capture, during his trial, he stated "I am a Yugoslav nationalist, aiming for the unification of all Yugoslavs, and I do