Second Balkan War
June 29 – August 10, 1913 · Macedonia
Related events
Bulgaria attacked its former allies Serbia and Greece over the division of Macedonia; Romania and the Ottoman Empire joined in, and Bulgaria lost most of its gains.
Sides
Bulgaria
Serbia and allies
Battles 3
- Battle of Bregalnica June 30 – July 9, 1913
- Battle of Kilkis–Lachanas July 2–4, 1913
- Battle of Kresna Gorge July 21–31, 1913