After the Russo-Turkish war of 1878, with the Treaty of Berlin, the Bulgarian ethnic land was divided. Northern Dobrudja was handed over to Romania, and Nis and Pirot regions - to Serbia. The Principality of Bulgaria, a vassal of the Ottoman Empire,..
In order to eliminate the unjust fragmentation of Bulgaria after the Berlin Treaty of 1878, Bulgaria fought in four wars for national unification. Later, placed under Soviet command, it joined the final stages of World War II. Many Bulgarian..