sentences:  From 2010 to 2015, the Football First League of North Kosovo was the top football regional league in North Kosovo, ranked fifth in the Serbian league system.The league was formed primarily of Serbian football clubs that come from four of North Kosovo's municipalities such as Leposavić, Zvečan, Zubin Potok and Northern Kosovska Mitrovica.The league was formed in protest to the establishment of the Kosovo Super League by the Republic of Kosovo; the Serbian clubs from North Kosovo refuse to enter the Republic of Kosovo's institutions as per the Assembly of the Community of Municipalities of the Autonomous Province of Kosovo and Metohija.