معاهدة سان ستيفانو
The first postwar treaty, the abortive Treaty of San Stefano signed on March 3, 1878, assigned Albanian-populated lands to Serbia, Montenegro, and Bulgaria. Austria-Hungary and the United Kingdom blocked the arrangement because it awarded Russia a predominant position in the Balkans and thereby upset the European balance of power. A peace conference to settle the dispute was held later in the year in Berlin.