Bileća is a town and municipality in Republika Srpska, Bosnia and Herzegovina. As of 2013, the town has a population of 7,476 inhabitants, while the municipality has 10,807 inhabitants.

Nikšić, is the second largest city in Montenegro, with a total population of 56,970 located in the west of the country, in the centre of the spacious Nikšić field at the foot of Trebjesa Hill. It is the center of Nikšić Municipality with population of 66,725 according to 2023 census, which is the largest municipality by area and second most inhabited after Podgorica. It was also the largest municipality by area in the former Yugoslavia. It is an important industrial, cultural, and educational center.