Wikipedia
Bijeljina
Bijeljina (; ) is a city and municipality in northeastern Bosnia and Herzegovina, in the Republika Srpska entity. The city is the second largest in the Republika Srpska entity after Banja Luka and the fifth largest city in Bosnia and Herzegovina (after Sarajevo, Banja Luka, Tuzla, and Zenica), and is situated on the plains of Semberija. Bijeljina is the unofficial centre of the eastern part of Republika Srpska, with 114,663 inhabitants. Bijeljina is located at from the border with Serbia and from the border with Croatia.