Contested Regions according to the map annexed to the Treaty
of Alliance [1912] (262K)
Map from "Report of the International Commission To Inquire into
the Causes and Conduct of the Balkan Wars" 1914. "The Serbian-Bulgarian
treaty of 13 March 1912 made provision for the partition of Macedonia
along the following lines: 'all the territory north of the Sar
range' was to go to Serbia; 'all the region east of the Rhodope
range and the Struma valley' was to go to Bulgaria. Bulgaria hoped
the intervening country should form an 'autonomous Macedonia',
but, if this should prove impossible, a new line was to be drawn
leaving Kumanovo, Skoplje and Debar to Serbia, and giving Kratovo,
Veles, Bitolj (Monastir) and Ohrid to Bulgaria. Serbia undertook
to make no claim south of the line; Bulgaria reserved the right
to claim territory to the north, in which case Russia was to act
as arbitrator. The area of overlapping claims was known as the
'Contested Zone'. "--quote from: Great Britain. Naval Intelligence
Division, Geographical Handbook Series: Jugoslavia, Volume II,
1944, p. 114.