Eastern Europe is defined both geographically and politically. Politically, Eastern Europe referred to the communist states allied with the Soviet Union from Poland south to Yugoslavia and Albania. With the collapse of communism in the late 1980s and early 1990s, the definition of Eastern Europe changed and now also includes Greece. Ethnicity, which was suppressed under communist rule, reemerged and led to conflicts like the war in Yugoslavia in the 1990s. The region was long dominated by Russia due to its control over Eastern Europe, but countries have asserted independence since the fall of the Soviet Union in 1991. However, Russia still seeks to exert influence over former Soviet states and in Central Asia.