Bijeljina is the city and center of the municipality of the same name in the northeastern part of the Republic of Srpska. The municipality's area is 734 km² and the total population is approximately 114,663. The city is the historical center of Semberija and one of the richest cities of Bosnia and Herzegovina. As a fertile plain town, it is one of the centers for the production and trade of food. Bijeljina is recognizable by the spacious central square, whose beauty enhances the pleasant ambience of the City Park.

In May 2012, the Government of the Republic of Srpska made a decision to change the status of the municipality of Bijeljina by which Bijeljina was granted the status of the city in 1992.

In the area of ​​Bijeljina municipality, for now the oldest confirmed traces of human life originate from the young Stone Age (5000-3000 BC). Remains from the period of the Neolithic, Bronze and Iron Age and Antique period were also recorded. Locations Gradac and Agricultural Land were searched in Batković, Glavičice, Kućerina in Dvorovi, Kočinovac village, Brodić in Triješnica, and from the ancient period, a Roman villa was discovered at the location of Prekaja in Brodac, and in Velika Obarska was found a lead tile of cult purposes with a play 'Danubian horsemen'.

The most famous Old Serbian and Old Slavic site was explored on both sides of Bistrica between the villages of Batković and Ostojićevo and consisted of 4 localities between the 7th and 12th centuries. It is especially important that a large complex of workshops in the metallurgical settlement where the ancestors in the 8th century dissolved iron and produced iron tools was explored at the Čelopek locality, as clearly evidenced by the finding of the gus - graphite pot kept in the Bijeljina Museum. At this time, the settlement of Bistrica, the likely name of Bistrica, was undoubtedly the center of the parish which encompassed the entire plain before Bijeljina emerged.

The first mention of the name Bijeljina is lost in the distant past. In the "Yearbook of Pop Dukljanin" one victory of Zahumski prince Bele - Pavlimiro against Hungarians "is mentioned in the Belina plain". Today in science it is believed that the first sure significance of the settlement of Bijeljina was that of March 3, 1446, when a Dubrovnik merchant was robbed by the people of Ilica Ban.

Bijeljina is a rare city that has only changed the entire population in only the last 500 years. For the first time it was with the arrival of the Turks in 1520, and the second time with the arrival of the Austrians in 1716. According to the Zvornik Sandzak census in 1533, only 4 villages are mentioned in the abandoned Bijeljina region: Cetvrtkovište, Mirkovci (Dašnica), Grm (Galac) and Čukojevići (Modran) with 55 houses in total. In the next census of 1548, there were 17 villages with 772 houses, of which 554 were Orthodox and 218 Muslim. From this time also is the oldest building in the Bijeljina municipality, which is the spiritual center of the Serbs of this region - the Tavna Monastery, the non-Banjanic endowment.

Pale is a municipality in Bosnia and Herzegovina, Republika Srpska. It developed during the Winter Olympics in Sarajevo. In 1992, it became the seat of the Republika Srpska to lose that status in 1998 when the capital of that entity became Banja Luka. Neighboring municipalities are: Sokolac, Rogatica, Pale-Prac, Trnovo (RS), and the cities of East Sarajevo and Sarajevo.

Part of the municipality was joined by the Dayton Peace Agreement to the Federation of BiH and formed a new municipality called Pale-Praca.

The municipality of Pale includes 492 km² of distinctly mountainous character, with an altitude of 624 to 1916 m. The lowest point is at 624 m above sea level, on the western side of the municipality, where Paljan and Mokranjska Miljacka are merged.

The central part of the municipality of Pale occupies the pale basin, located between the mountain massifs: Jahorina from the south, Gosina from the east, Romanija from the northeast, Ozren from the north and northwest and Trebevic from the west. The seat of the municipality is in the settlement of Pale. Pale trees are located in the basin itself, which takes up an area of ​​about 8.5 km². They are located at an altitude of 820 m.

They have fallen by geographical and natural traits, long known as a climatic health resort and a picnic area. The beauty of the environment, clean air and the proximity of ski slopes on Jahorina represent a natural disposition and a real basis for the development of tourism. Moderately warm and humid climate is present in the lower parts of the municipality, this climate exceeds 1,000 m above sea level, and this climate goes into the mountain climate. A sharp mountain climate is also felt during the summer months, when the air temperature rarely exceeds 25 ° Celsius.

The predominant part of the municipality's territory consists of forest land (64%), and all (34%) agricultural and other land.

In the area of ​​the municipality there are several famous caves: Orlovača, Pećina Source Mokranjska Miljacka, Tito's cave Bogovići, Popova cave and Novak's cave.

One of the most important natural sights is the Orlovača cave, which is arranged for tourist visits. Orlovača (948 m) is situated on the same name in the western part of the Romanija arch, hamlet Donje Sinjevo, settlement Sumbulovac, in the basin of Mokranjska Miljacka, or in the valley of its right tributary of Sinjava.

Extensive research of the Miljacka source included topographic measurements, biospeleological and hydrological research, as well as the examination of the traces of human culture. Research was carried out during 2007-2009. To date, speleologists have explored 7,100 m, making the cave Izvor Mokranjska Miljacka the longest documented cave in the whole of Bosnia and Herzegovina.

Developers in the area of ​​Paljane municipality are industry, forestry, catering and tourism activities and trade. Due to the geographical and climatic characteristics of the area, the activity of agriculture is less developed. After the end of the war, development began in the field of construction, especially in the field of small economy.

Industrial development in the Municipality of Pag is mainly oriented to the metal, wood and textile industries.

The area of ​​Pale municipality, with its natural conditions, favors the development of the hospitality and tourism industry. It is very attractive for tourists Olympic Center Jahorina, with beautiful skiing grounds, where the winter season lasts for five months. Skiers and other tourists are at the disposal of more than 20 km of well-equipped ski trails connected with seven ski lifts and six ski lifts, a modern ski school and a ski service.

Apart from the benefits for winter tourism, the Municipality of Pale also has excellent conditions for hunting tourism, with extraordinary hunting grounds connected to main, regional and forest roads, as well as hunting lodges.

From natural sights, the most important cave is Orlovača, which is arranged for tourist visits. Clover bears (Ursus spelaeus), as well as an insect from the Coleopter family, were found in the Orlovaca cave.