Herzegovina
Herzegovina ( or ; Serbo-Croatian: "Hercegovina", Херцеговина, ) is the southern region of Bosnia and Herzegovina. While there is no official border distinguishing it from the Bosnian geographical region, it is sometimes asserted that the borders of the region are Dalmatia to the southwest, Montenegro to the east, Mount Maglić to the northeast, and Mount Ivan to the north. Measurements of the area range from , or around 22% of the total area of the present-day country, to , around 24% of the country.
Trebinje
Trebinje () is a city located in Republika Srpska, an entity of Bosnia and Herzegovina. It is the southernmost city in Bosnia and Herzegovina situated on the banks of Trebišnjica river in the region of East Herzegovina. As of 2013, it has a population of 31,433 inhabitants. The city's "old town" quarter dates to the 18th-century Ottoman period, and includes the Arslanagić Bridge.