Bulgaria–Greece relations

1912 military alliance

1919 treaty

1913 peace treaty in the Second Balkan War

mid-late October 1925 minor military conflict between Bulgaria and Greece

cultural and military conflicts between various Balkan peoples in the region of Macedonia

cooperation project between Romania, Bulgaria, Greece and Serbia

Transnational motorway in Europe

pipeline project in Eastern Europe

bilateral relations between Greece and Bulgaria

linguistic minority in Greece

military unit

oil pipeline