Who or what caused World War I has been greatly debated by many historians. However, one thing we can all agree upon is that one of the primary factors that triggered the Great War in July 1914, was the assassination of the Archduke Franz Ferdinand, heir to the Austro-Hungarian throne, in Sarajevo on June 28, 1914. Ferdinand and his wife were assassinated by the Black Hand, a Serbian nationalist secret society, which served as an excuse for Austria Hungary to declare war on Serbia. Serbians nationalism and desire to expand beyond its borders into the Austro–Hungarian territories brought about many disruptive forces.
From then on, things quickly spiraled where one thing led to the other. Russia bound by treaty to Serbia announced mobilization
From then on, things quickly spiraled where one thing led to the other. Russia bound by treaty to Serbia announced mobilization