Yes, a brother-in-law’s ex-wife was assasinated by them because she was a UN-NATO police/penal administrator.
Both sides had people committing war crimes, and the UN-NATO authorities made the effort to bring those of both sides to justice and stop both sides from making war upon each other. NATO certainly did not annex Serbian territory the way in which Russia has committed the same crime we prosecuted and punished the Third Reich officers of Germany.
Someday Serbia will retake kosovo—it may be in 10 years or 20—or even 50—but it will happen. Maybe with Russian support and when that day happens it will be a bad day for muslims. What we have seen is a look into the future when Russia will dominate Europe. The EU will be more like the old Warsaw Pact. That will also be a bad day for Mulims in Europe—they will face many hardships.