At the end of 1912 , the Kingdom of Serbia occupied most of the Albanian-populated territory to the Adriatic coast . During the attempt to annex those lands , the Royal Serbian Army committed serious crimes against the local Albanian population . In order to investigate the crimes , the Carnegie Endowment for International Peace formed a special commission , which was sent to the Balkans in 1913 . Summarising the situation in Albanian areas , the commission concluded : The Serbian government denied the reports on war crimes . During the war , Serbian propaganda implemented a strong anti-Albanian campaign . These events greatly contributed to the enmity of the local Albanian population against the Serbian Army
serious crimes
Massacres of Albanians in the Balkan Wars
Serbian army's retreat through Albania