Original sentence: (Source:)  which seeks independence on territories long held by ethnic Serbs, including as part of Yugoslavia.In February 2008 Europe's major powers and the United States recognised independence of Kosovo (Source: ).Kosovo is a largely ethnic-Albanian nation (Albanians 88%, Serbs 6%, Bosniaks 3%, Roma 2%, Turks 1%.Kosovo is independent, supervised by the international community following the conclusion of the political process to determine Kosovo’s final status envisaged in UN Security Council Resolution 1244 (Source: )
Edited sentence: In February 2008 Europe's major powers and the United States recognised independence of Kosovo.Kosovo is a largely ethnic-Albanian nation (Albanians 88%, Serbs 6%, Bosniaks 3%, Roma 2%, Turks 1%),  which seeks independence on territories long held by ethnic Serbs, including as part of Yugoslavia.Kosovo is independent, supervised by the international community following the conclusion of the political process to determine Kosovo’s final status envisaged in UN Security Council Resolution 1244