The country that caused the outbreak of World War I was the Austrian-Hungarian Empire. The territory and political status of Serbia caused the assassination of Daimyo Franz Ferdinand. After the death of Ferdinand, the Austrian-Hungarian empire started appealing to the Germans to support the problems of the Balkans, and Germany issued a "blank check" to confirm their aid. Austria later submitted a list of final passes to Serbia. It also includes extreme demands Serbia wants to reject.
The direct cause of the First World War was the assassination of the Austrian Grand Duke Franz Ferdinand and his pregnant wife Sophie. The Austrian Grand Duke Franz Ferdinand was the nephew of Emperor Franz Joseph and was the successor to the throne of Austria and Hungary. The assassination was planned by a Serbian terrorist organization, Mafia, a man who shot Franz Ferdinand and his wife, Bosnian revolutionary named Gabriello.
Among all the reasons of the First World War, the most important thing is that the assassination of the Grand Duke of Austria Franz Ferdinand is an exciting war that almost directly leads to warfare, it is an alliance, nationalism, and society It has brought Darwinism. Imperialism and militarism were other reasons. Daimo Franz Ferdinand and his wife were assassinated by a Serbian nationalist in Bosnia, part of the territory of the Austrian-Hungarian empire. This happens to be a Serbian protest against the dominion of the region by the Austrian-Hungarian Empire. As a result, the war will continue to expand as the war is declared between the Austrian-Hungarian Empire and Serbia and the interests of all countries contribute to their interests.
On June 28, 1914, the First World War began. A month later, Franz Ferdinand, the successor to the throne of Austria and Hungary, was assassinated by Serbian nationalists. Prior to the war with Serbia, the Austrian-Hungarian empire confirmed that they are supporting them from Germany. This gave Serbia time to return from Russia and they signed a treaty with Russia. But this is not the end and Russia has a treaty with France and the UK so when the Austrian-Hungarian empire declared war the entire Europe had been involved.
On 28 June 1914, in Sarajevo, the Austrian Grand Duke Francis Ferdinand was assassinated by Serbian terrorist organizations. This seems to be the reason for the First World War, but in reality the spark of the beginning of the war of Europe was furious with the real cause of war. Imperialism, nationalism, alliance, militarism are the four main reasons for the war in Europe. Because of these effects, the assassination of Francis Ferdinand caused a serious situation in World War.