Europe 1913: Second Balkan War
Bulgaria had gained much territory in the war against the Ottomans, but less than what it had been promised. In June 1913, exactly one month after peace had been signed, it attacked Serbia for more land. However, in the war that followed, the Greeks, Montenegrins, Romanians, and Ottoman Turks sided with the Serbs, and Bulgaria ended up defeated on all sides.
30 May 1913 Treaty of London▲
Peace treaty between Ottoman Empire and Balkan League (Serbia, Montenegro, Bulgaria, and Greece)
30 Jun 1913 Second Balkan War begins▲
Bulgaria attacked Serbia and Greece.
10 Jul 1913 Romania declares war on Bulgaria▲
Romania declares war on Bulgaria
12 Jul 1913 Turkey enters 2nd Balkan War▲
Ottoman Empire joins war against Bulgaria