Bulgarian–Serbian War
- Balkan Front (World War I)
- Balkans campaign (World War II)
- Battle of Velbazhd
- Bulgarian occupation of Serbia (disambiguation)
- Bulgarian–Serbian wars (medieval)
- Bulgarian–Serbian wars of 917–924
- Bulgar–Serb War (839–842)
- Bulgar–Serb War (853)
- Second Balkan War
- Serbian Uprising (disambiguation)
- Serbian-Turkish War (disambiguation)
- Serbo-Bulgarian War
- Toplica Uprising