The answer is the Serbs ethnic group. This
ethnic group wanted to break away and form their own state between the years of
1912-1913. This breakage was before the start of the First World War. A lot of
Serbia desired to be free and not to be controlled by the
authority of other nations, so they broke from the Austrian Control, while they
were supported by Russia, which caused as a threat to the Empire of
Austro-Hungarian.
