The Serbs of Bosnia and Herzegovina are one of the three constitutive nations of the country, predominantly residing in the political-territorial entity of Republika Srpska. In the other entity Federation of Bosnia and Herzegovina Serbs form the majority in Drvar, Glamoč, Bosansko Grahovo and Bosanski Petrovac. They are frequently referred to as Bosnian Serbs (Serbian: Босански Срби / Bosanski Srbi) in English, regardless of whether they are from Bosnia or Herzegovina. They are also known by regional names such as Krajišnici ("frontiersmen" of Bosanska Krajina), Semberci (Semberians), Bosanci (Bosnians), Hercegovci (Herzegovinians).