Young Bosnia
On 28 June 1914, Gavrilo Princip, a Bosnian Serb member of the revolutionary movement Young Bosnia, assassinated the heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, in Sarajevo—an event that was the spark that set off World War I. At the end of the war, the Bosniaks had lost more men per capita than any other ethnic group in the Habsburg Empire whilst serving in the Bosnian-Herzegovinian Infantry (known as "Bosniaken") of the Austro-Hungarian Army. Nonetheless, Bosnia and Herzegovina as a whole managed to escape the conflict relatively unscathed.