Size of the Balkan countries:
Albania (28,748 km2)
Bosnia and Herzegovina (51,197 km2)
Bulgaria (110,993 km2)
Croatia (56,594 km2)
Greece (131,990 km2)
Kosovo[a] (~9,700 - 10,908 km2; excluding - including North Kosovo)
Fyromania ( ) (25,713 km2)
Montenegro (13,812 km2)
Romania (238,391 km2)
Serbia (77,453 - 88,361 km2; excluding - including Kosovo)
Slovenia (20,273 km2)
All countries (766,072 km2)
source: Wikipedia
Albania (28,748 km2)
Bosnia and Herzegovina (51,197 km2)
Bulgaria (110,993 km2)
Croatia (56,594 km2)
Greece (131,990 km2)
Kosovo[a] (~9,700 - 10,908 km2; excluding - including North Kosovo)
Fyromania ( ) (25,713 km2)
Montenegro (13,812 km2)
Romania (238,391 km2)
Serbia (77,453 - 88,361 km2; excluding - including Kosovo)
Slovenia (20,273 km2)
All countries (766,072 km2)
source: Wikipedia