it was an autonomous province of the republic of serbia. and it was for a very long time, essentially dominated by serbia. internally, kosovo consists of mostly two groups, the ethnic albanian majority which at the time of the nato war were approximately 85-90% of the total population, and a serb minority. again, at the time of the war approximately 10-15% of the population. the two groups had a history of largely negative interactions, the serb historically being the privileged group, the better educated, the more affluent group, the albanians being one of the poorest groups in the former yugoslavia and, indeed, all of europe. under communist yugoslavia it was essentially the serbs who were dominant in the province and the republic of serbia that dominated the province. there was significant discrimination against the albanian majority, and it must be said as a general point the albanians had legitimate historical grievances. in 1966 the communist government of yugoslavia under tito engineered a major change of policy, and in this new poli