BOSNIA HERCEGOVINA - SERBIAN REPUBLIC - Република Српска

Republika Srpska (Serbian Cyrillic: Република Српскa), is one of the two entities of Bosnia and Herzegovina, the other being the Federation of Bosnia and Herzegovina. Its largest city and administrative centre is Banja Luka, lying on the Vrbas river. The entity encompasses most of the Bosnian Serb-populated portions of Bosnia and Herzegovina situated in the densely forested north and east of the country. Formed in 1992 at the outset of the breakup of Yugoslavia, Republika Srpska, following the Dayton Accords, achieved international recognition as part of a federal Bosnia and Herzegovina.

Today, Republika Srpska maintains a parliamentary-style government, with the National Assembly holding legislative power within the entity. Republika Srpska is relatively centralised, although it is split into 2nd-level administrative units—municipalities, or opštine—of which there are 64. Republika Srpska, literally means 'Serb Republic'. Although the name Republika Srpska is variously glossed in English as 'Serb Republic''Bosnian Serb Republic', or 'Republic of Srpska', the Constitution of Bosnia and Herzegovina and English-language news sources such as the BBC, The New York Times, and The Guardian generally refer to the entity by its transliterated romanisation.

According to Glas Srpske, a Banja Luka daily, the modern entity's name was created by its first minister of culture, Ljubomir Zuković. Situated in Southeast Europe, Republika Srpska is located on the Balkan Peninsula, with its northern extents reaching into the Pannonian Basin. Like the rest of Bosnia and Herzegovina, Republika Srpska is split into a Bosnian region in the north and a Herzegovinian region in the far south. Within these two macroregions exist smaller geographical regions, from the forested hills of Bosanska Krajina in the northwest to the fertile plains of Semberija in the northeast. 

Republika Srpska covers 24,525 square kilometres (9,469 square miles), excluding the Brčko District, which is held in condominium by both entities, but is de facto sovereign within Bosnia and Herzegovina. Republika Srpska, if it was a country, would be 149th largest in the world. Republika Srpska shares international borders with Croatia to the north, Serbia to the east, and Montenegro to the southeast. Within Bosnia and Herzegovina, the Inter-Entity Boundary Line (IEBL) forms Republika Srpska's border with the Federation of Bosnia and Herzegovina, and essentially follows the front lines at the end of the Bosnian War with some adjustments (most importantly in the western part of the country and around Sarajevo) as defined by the Dayton Agreement. The total length of the IEBL is approximately 1,080 km. The IEBL is an administrative demarcation uncontrolled by military or police and there is free movement across it. Republika Srpska is one of the most forested areas in Europe, with over 50% of its area consisting of forest cover. Perućica is one of the last old-growth forests in Europe. Two densely-wooded national parks—Sutjeska National Park and Kozara National Park—are located in the entity.

According to its constitution, Republika Srpska has its own president, legislature (the 83-member unicameral National Assembly of Republika Srpska), executive government, police force, court system, customs service (under the state-level customs service), and postal service. Pošte Srpske (full legal name: Preduzeće za poštanski saobraćaj Republike Srpske ad) is one of three companies responsible for postal service in Bosnia and Herzegovina. The other two are BH Pošta and Hrvatska pošta Mostar. Srpske pošte in Banja Luka started to issue stamps on 26 October 1992. The stamps first had label Republika Srpska, and the currency was until 24 December Yugoslav dinar. From 15th of July 2003, the stamps use double label Bosna i Hercegovina / Republika Srpska. The stamps of Republika Srpska usually use the Cyrillic script, so the label reads Рeпублиҝa Српска.

Again two nice envelopes from my good friend Edin sent from Serbian Republic of Bosnia Herzegovina federation.  He affixed extra stamps and asked to postmark in the better way . Thank You Edin for the beautiful covers from Srpska.

This is my first registered airmail cover from Serbian Republic of Bosnia and Herzegovina. They have own postal administration, stamps and even separate Registered Mail barcode with country code too. Previously they were issued stamps as a separate country, Now they issue stamps in the name of Bosnia along with the country name -Federation of Bosnia and Herzegovina. Even though the three regions issue stamps in a single currency and equal value, but only can use in the respective regions.