Austria-Hungary was largely responsible for the events of World War I. By upsetting other countries and causing universal fear and agitation, Austria-Hungary's war-ready attitude created The Great War, later to be named World War I.

In 1878 Austria-Hungary took control of the Bosnia's and Herzegovina's governments, angering many Slavs who resented Austrian rule and upsetting Serbia and Russia who were looking to control the lands. In 1908 further upset was achieved when Austria-Hungary annexed both Bosnia and Herzegovina, destroying Serbia's ambitions of gathering all Slavs into their nation.

A few years later, in 1914 Austria-Hungary again angered the Serbian government, but more so its people. Sending Archduke Francis Ferdinand into Bosnia outright infuriated Serbia because Serbians believed Austria-Hungary annexed Bosnia illegally, and should not be sending the archduke to visit. Austria-Hungary brought further discontent to the Serbian government when they falsely accused government officials of assassinating Archduke Ferdinand. With Germany's support...