Bihac on the Una River

Bihac is a historical city located on the Una river. It has about 56,300 inhabitants. It is located in the northwestern part of Bosnia and Herzegovina. It is located about 156 km from Zagreb and about 429 km northwest of Sarajevo (Geographical coordinates: 44º48'50.83''N, 15º52'09.13''E, elevation: 230). Material traces bear witness to the presence of people in this area as early as the Paleolithic era, and then continuously until today. The Illyrian tribes of the Japoda were present in this area in the 8th century BC, where the remains of the Sojenica settlements, jewelry made of bronze, iron and silver are the most significant remains of their culture. Among the remains of this culture, the relief 'Japodian Horseman' on one of the tombstones stands out. All the mentioned material remains of the Japoda culture are located in the Ripac settlement near Bihac. This area belonged to the Roman province of Dalmatia. At the thermal spring of Gata Ilidza near Bihac, there are also the remains of a larger building from the ancient Roman era, while in the Golubic village (which some scientists claim is the location of the former Roman city of Raetinum), there are the remains of a mithraeum, a temple dedicated to the god Mithras, with reliefs . During the war (1992-1995), Bihac, although in a complete environment, showed unprecedented vitality and spirit of freedom, where it resisted the Serbian occupation. The aim of this paper is a 'study on sustainability' on the concrete example of a city in Bosnia and Herzegovina.