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1910s in Greece
1912 in Bulgaria
1913 in Bulgaria
1912 in Serbia
1913 in Serbia
Balkan Wars
Conflicts in 1912
Wars of independence
Wars involving Bulgaria
Bulgaria–Greece relations
Greece–Serbia military relations
20th-century military history of Montenegro
Wars involving the Ottoman Empire
Ottoman period in the Balkans
Ottoman Empire–Serbia relations
Greece–Ottoman Empire relations
Bulgaria–Ottoman Empire relations