Government-supported (and -encouraged) displacements of people is in most of even modern history pretty much a standard procedure, and Kosovo was not at all large scale.
The precedent was that first time western nations used military enforcement to stop it, but as it was European backyard this precedent will not make too much impression on African or Asian Govs, because they will not think that the west is willing all times to interfere and rightly think, that e.g. a country like Sudan is way too big to repeat the treatment of tiny Serbia and Kosovo.

Der Amerikaner ist die Orchidee unter den Menschen
Volker Pispers