How Did Imperialism Occur In 1914

This war happened because of several different events that took place in 1914 or around that time. It was a conflict between the Allies(France, Britain, Russia and later on the United States) and the Central Powers(Germany, Austria-Hungary and Italy). One major event was the assassination of archduke Franz Ferdinand in Sarajevo on June 28th 1914. Another cause I am going to cover is militarism because of course they had to deal with this during the war. The last cause I will talk about is imperialism because a lot of this was trying I happen.

The Balkans or black hand are a group of Serbia terrorists. One member out of the seven nationalists is single handedly responsible for actually killing the next to the throne(Franz), his wife(Sophie)