Banja Luka in the context of "Jajce"

Republika Srpska (Serbian Cyrillic: Република Српска [repǔblika sr̩̂pskaː] ), also referred to as the Republic of Srpska or the Serb Republic, is one of the three political divisions of Bosnia and Herzegovina, the others being the Federation of Bosnia and Herzegovina and the Brčko District. Situated in the northern and eastern regions of the country, it recorded a population of 1,228,423 in the 2013 census. Its largest city and administrative hub is Banja Luka, located on the banks of the Vrbas River.

Republika Srpska was established in 1992 at the onset of the Bosnian War with the stated purpose of safeguarding the interests of the Serbs of Bosnia and Herzegovina. During the conflict, the expulsion of the majority of Croats and Bosniaks from territories controlled by Republika Srpska occurred, while the majority of Serbs were displaced or expelled from the present-day Federation of Bosnia and Herzegovina to Republika Srpska. The 1995 Dayton Agreement created Republika Srpska as one of Bosnia and Herzegovina's two constituent entities. Today, it is inhabited by the Serb population of the country.

The Vrbas (Serbian Cyrillic: Врбас, pronounced [ʋr̩̂ba(ː)s]) is a major river with a length of 250 kilometres (160 mi), in western Bosnia and Herzegovina. It is a right tributary of the Sava river. The city of Banja Luka is located on the river banks.

The river is the main watercourse of Banja Luka and before Banja Luka. With its blue-green color, it's one of the most beautiful rivers in Bosnia and Herzegovina.

The Eastern Orthodox Church is the most widespread Christian denomination in Bosnia and Herzegovina and the second most pervasive religious group in the country, following Islam and followed in turn by Catholicism. Eastern Orthodox Christians in Bosnia and Herzegovina mostly belong to the Serbian Orthodox Church. According to the 2013 census, there were 1,089,658 adherents of Eastern Orthodoxy or the Serbian Orthodox Church in Bosnia and Herzegovina, making up 30.86% of the population.

Bosanska Krajina (Serbian Cyrillic: Босанска Крајина, pronounced [bɔ̌sanskaː krâjina], lit. 'Bosnian Frontier') is a geographical region, a subregion of Bosnia, in western Bosnia and Herzegovina. It is enclosed by several rivers, namely the Sava (north), Glina (northwest), Vrbanja and Vrbas (east and southeast, respectively). The region is also a historic, economic, and cultural entity of Bosnia and Herzegovina, noted for its preserved nature and wildlife diversity.

The largest city and historical center of the region is Banja Luka. Other cities and towns include Bihać, Bosanska Krupa, Bosanski Petrovac, Čelinac, Bosansko Grahovo, Bužim, Cazin, Drvar, Gradiška, Ključ, Kostajnica, Kozarska Dubica, Kneževo, Kotor Varoš, Laktaši, Mrkonjić Grad, Novi Grad, Prijedor, Sanski Most, Šipovo, Velika Kladuša, and Prnjavor.