There had been sporadic fighting in Macedonia between the Allies for some months past. Greece and Servia had concluded an anti-Bulgarian alliance on June 1. They also entered into a convention with Roumania by which that power agreed to intervene in case of war between the late Allies. And war having been declared, Roumania seized Silistria at midnight, July 10. Meanwhile the Servian and Greek forces were fighting the Bulgarians hard at Kilkis, Doiran, and other points between the Vardar and the Struma. And, as if Bulgaria had not enemies enough on her back already, the Turkish Army on July 12 left the Chataldja fortifications, crossed the Enos-Midia line, and in less than two weeks, with Enver Bey at its head, re-occupied Adrianople. Bulgaria was powerless to stop the further advance of the Turks, nor had she forces to send against the Roumanians who marched unopposed through the neighboring country till Sofia itself was within their power.
No nation could stand up against such fearful odds. Dr. Daneff resigned on July 15. And the new ministry had to make the best terms it could.
A Peace Conference met at Bukarest on July 28, and peace was signed on August 10. By this Treaty of Bukarest Servia secured not only all that part of Macedonia already under her occupation but gained also an eastward extension beyond the Doiran-Istib-Kochana line into purely Bulgarian territory. Greece fared still better under the treaty; for it gave her not only all the Macedonian lands she had already occupied but extended her domain on the Aegean littoral as far east as the mouth of the Mesta and away into the interior as far above Seres and Drama as they are from the sea,—thus establishing the northern frontier of New Greece from Lake Presba (near the eastern boundary of Albania) on a northward-ascending line past Ghevgheli and Doiran to Kainchal in Thrace on the other side of the Mesta River. This assignment of territory conquered from Turkey had the effect of shutting out Bulgaria from the Western Aegean; and the littoral left to Bulgaria between the Mesta River and the Turkish boundary has no harbor of any consequence but Dedeagach, which is much inferior to Kavala.