The ethnic composition of Abkhazia has played a central role in the Georgian-Abkhazian conflict and is equally contested. The demographics of Abkhazia were very strongly affected by the 1992–1993 war with Georgia, which saw the expulsion and flight of over half of the republic's population, measuring 525,061 in the 1989 census. The population of Abkhazia remains ethnically very diverse, even after the 1992–1993 war. At present the population of Abkhazia is mainly made up of ethnic Abkhaz (50.7% according to the 2011 census), Russians, Armenians, Georgians, Mingrelians, and Greeks. Other ethnicities include Ukrainians, Belarusians, Ossetians, Tatars, Turks, and Roma.