Bulgaria during World War I 28 June 1914, Gavrilo Princip, a Bosnian-Serb student and member of Young Bosnia, assassinated the heir to the Austro-Hungarian throne, the Archduke Franz Ferdinand of Austria in Sarajevo, Bosnia. This began a period of diplomatic manoeuvring between Austria-Hungary, Germany, Russia, France and Britain called the July Crisis. Wanting to end Serbian interference in Bosnia conclusively, Austria-Hungary delivered the July Ultimatum to Serbia, a series of ten demands that were intentionally meant to be unacceptable in order to precipitate a war with Serbia. When Serbia acceded to only eight of the ten demands levied against it in the ultimatum, Austria-Hungary declared
Archduke Franz Ferdinand of Austria in 1896. Henceforth, Franz Ferdinand was groomed to succeed to the throne. Despite this burden, he did manage to find time for travel and personal pursuits, such as his circumnavigation of the world between 1892 and 1893. After visiting India he spent time hunting kangaroos and emus in Australia in 1893, then travelled on to Nouméa, New Hebrides, Solomon Islands, New Guinea, Sarawak, Hong Kong and Japan. After sailing across the Pacific on the RMS "Empress of China" from Yokohama to Vancouver he crossed the United States and returned to Europe. The Archduke and his wife visited England in the