Kingdom of Serbia
Balkan Wars and expansion
Negotiations between Russia, Serbia and Bulgaria led to the Serbian-Bulgarian Treaty of Alliance of March 1912, which aimed to conquer and to divide the Ottoman held Macedonia. In May, a Serbian-Greek alliance was reached and in October 1912, a Serbia-Montenegro alliance was signed.
Balkan Wars and expansion
As the result of these wars, Serbia's population increased from 2.9 million to 4.5 million and territory increased by 81%.
Assassination in Sarajevo
The political objective of the assassination was to break the southern Slav provinces off from the Austro-Hungarian Empire. Assassination of Archduke Franz Ferdinand triggered a chain of international events that embroiled Russia and the major European powers in the conflict.