 The major (western and central) part of historical Herzegovina was occupied by Austria-Hungary in 1878, after the Congress of Berlin, and that region became part of the Condominium of Bosnia and Herzegovina.Since then, the name of "Herzegovina" was reduced to that region.In the same time, eastern portion of historical Herzegovina was annexed to the Principality of Montenegro (1878), while some sections remained under Ottoman rule (Sanjak of Pljevlja) until 1912, when they were divided between Montenegro and Serbia.