Toplica and other Albanian areas of Sanjak of Nis. This means that the Albanians expelled after moving, attained the appellation muhaxhirë (refugees), which instead for the family surname to take the name of his grandfather, clan, or any other, they for their family surname take the name of the village of the Sanjak of Nis from where they were expelled from." ; pp. 53–54. After being an integral section of the Kingdom of Yugoslavia, Kosovo including its Albanian population went through a period of discrimination, economic and political persecution. Rights to use the Albanian language were guaranteed by the constitution of the later formed Socialist Yugoslavia and was widely used in Macedonia and Montenegro prior to the dissolution of Yugoslavia. In 1989, Kosovo lost its status as a federal entity of Yugoslavia with rights similar to those of the six other republics and eventually became part of Serbia and Montenegro. In 1998, tensions between the Albanian and Serb population of Kosovo culminated in the Kosovo War, which led to the external and internal displacement of hundreds of thousands of Kosovo Albanians. Serbian paramilitary forces committed war crimes in Kosovo, although the government of Serbia claims that the army was only going after suspected Albanian terrorists. NATO launched a 78-day air campaign in 1999, which eventually led to an end to the war. Distribution Balkans Approximately 5 million Albanians are geographically distributed across the Balkan Peninsula with about half this number living in Albania, Kosovo, North Macedonia and Montenegro as well as to a more lesser extent in Croatia and Serbia. There are also significant Albanian populations in Greece. Approximately 1.8 million Albanians are concentrated in the partially recognised Republic of Kosovo. They are geographically distributed south of the municipality of North Mitrovica and constitute the overall majority ethnic group of the territory. In Montenegro, the Albanian population is currently estimated to be around 30,000 forming one of the constituent ethnic minority groups of the country. They predominantly live in the coastal region of Montenegro around the municipalities of Ulcinj and Bar but also Tuz and around Plav in the northern region as well as in the capital city of Podgorica in the central region. In North Macedonia, there are more than approximately 500,000 Albanians constituting the largest ethnic minority group in the country. The vast majority of the Albanians are chiefly concentrated around the municipalities of Tetovo and Gostivar in