Serb Autonomous Regions
From August 1990 to November 1991, during the breakup of Yugoslavia, several Serb Autonomous Regions, Districts (literally Oblasts; sing. Serbian: Српска аутономна област (САО) / Srpska autonomna oblast (SAO)) were proclaimed in the Yugoslav republics of Croatia and Bosnia-Herzegovina in light of the possible secession of the republics from the Socialist Federal Republic of Yugoslavia. These were autonomous Serb-inhabited entities that subsequently united in their respective republic to form the Republic of Serbian Krajina in Croatia and the Republika Srpska in Bosnia and Herzegovina.