The Prenj mountains were part of the front line during the 1992–95 war in Bosnia and heavy combat took place in the mountains surrounding the eastern Bijela valley and the slopes above Konjic. Nowadays, Prenj falls almost entirely within the territory of the Federation of Bosnia and Herzegovina. Contamination with land mines and unexploded ordnance is a serious threat, especially east of a line that can be drawn from Čelebići to the summit of Zelena Glava and then to the village of Ravni. Former combat positions can be found as high up as the shoulders of Otiš at around 2000 meters. Nevertheless, Prenj is a very attractive destination for climbers and hikers. The peaks bear typical dolomitic features with vertical rock faces, soaring over green alpine valleys and dense mixed forests. Some mountain huts have re-opened (Bijele Vode, Hrasnica) and marked itineraries to the main peaks have been re-established.