Greek is spoken today by at least 13 million people, principally in Greece and Cyprus along with a sizable Greek-speaking minority in Albania near the Greek-Albanian border. A significant percentage of Albania's population has some basic knowledge of the Greek language due in part to the Albanian wave of immigration to Greece in the 1980s and '90s. Prior to the Greco-Turkish War and the resulting population exchange in 1923 a very large population of Greek-speakers also existed in Turkey, though very few remain today. A small Greek-speaking community is also found in Bulgaria near the Greek-Bulgarian border. Greek is also spoken worldwide by the sizable Greek diaspora which has notable communities in the United States, Australia, Canada, South Africa, Chile, Brazil, Argentina, Russia, Ukraine, the United Kingdom, and throughout the European Union, especially in Germany.