Southeast Europe
This concept is based on the boundaries of the Balkan peninsula. The countries that have been described as being entirely within the region are: Albania, Kosovo, Bosnia and Herzegovina, Bulgaria, Macedonia and Montenegro.
Demographic history of Macedonia
The Balkan Wars (1912–1913) and World War I (1914–1918) left the region of Macedonia divided among Greece, Serbia, Bulgaria, and Albania and resulted in significant changes in its ethnic composition. 51% of the region's territory went to Greece, 38% to Serbia and 10% to Bulgaria. At least several hundred thousand, left their homes, the remaining were also subjected to assimilation as all "liberators" after the Balkan War wanted to assimilate as many inhabitants as possible and colonize with settlers form their respective nation. The Greeks become the largest population in the region. The formerly leading Muslim and Bulgarian communities were reduced either by extermination or change of identity.