Figure 6. Division of Macedonia at the Treaty of 139 Bucharest, 1913

Source: Based on information from Christ Atanasoff, The Bulgarians, Hicksville, New York, 1977, 214.

The final removal of the Turks from Europe posed the problem of dividing Ottoman territory and heightened the worries of the European great powers about balancing influence in that strategic region. Disagreement about the disposition of Macedonia quickly rearranged the alliances of the First Balkan War and ignited a Second Balkan War in 1913. The Treaty of London that had ended the first war stipulated only that the Balkan powers resolve existing claims among themselves. The Bulgarians, having had the greatest military success, demanded compensation on that basis the Serbs and Greeks demanded adjustment of the 1912 treaty of alliance to ensure a balance of Balkan powers and the Romanians demanded territorial reward for their neutral position in the first war. Even before the First Balkan War ended, a strong faction in Bulgaria had demanded war against Serbia to preserve Bulgaria's claim to Macedonia. Ferdinand sided with that faction in 1913, and Bulgaria attacked Serbia. Turkey, Greece, and Romania then declared war on Bulgaria because they all feared Bulgarian domination of the Balkans if Macedonia were not partitioned. Because most Bulgarian forces were on the Serbian frontier, Turkish and Romanian troops easily occupied Bulgarian territory by mid-1913, and Bulgaria was defeated. The Treaty of Bucharest (1913) allowed Bulgaria to retain only very small parts of Macedonia and Thrace Greece and Serbia divided the rest, humiliating Bulgarian territorial claims and canceling the gains of the First Balkan War (see fig. 6). This loss further inflamed Bulgarian nationalism, especially when Bulgarians in Serbian and Greek Macedonia were subjected to extreme hardship after the new partition. At this point Russia, whose warnings Bulgaria had defied by attacking Serbia, shifted its support to the Serbs as its Balkan counterbalance against Austro-Hungarian claims.

Data as of June 1992