The Medal for the Greco-Turkish War of 1912-13 is a Greek medal instituted in 1914 and awarded to men of all armed forces who took part in battles or Naval battles or served in commandeering and auxiliary services on battle-sites, and also to civilians, either Greek or foreign subjects, who offered any kind of service to the Navy during the battles.
During the 1st Balkan War the alliance of Greece, Bulgaria, Montenegro and Serbia liberated the remaining Christian populations of the European territories from the Ottoman Empire. The War ended with the Treaty of London in 1913 but soon the 2nd Balkan War started, this time against Bulgaria.