Why does the capital of Uzbekistan contain the biggest Greek community?

Context: The Greeks in Uzbekistan number approximately 9,000. The community is made up of Greeks from Russia who were deported by force from that country to Uzbekistan in the 1940s, and political refugees from Greece. About 30,000 Greeks lived in the country before World War II and a further 11,000 arrived after the Greek Civil War and the defeat of Democratic Army of Greece. Their numbers have dwindled from a high of some 40,000 in the 1960s. The main reason is emigration to Greece after the end of the Cold War when laws allowed the return of all ethnic Greeks who had been exiled for political reasons after the Greek Civil War. The biggest Greek community in the country is in the capital city of Tashkent where most of the Greek political refugees were relocated by the Soviet authorities. In ancient times the south of the country was part of the Hellenistic Seleucid Kingdom but the few Greek communities there have since assimilated. The most important organization representing ethnic Greeks is the Greek Cultural Association of Tashkent. The activities of this organization include Greek language instruction and the teaching of Greek dances and music.

Answer: Most of the Greek political refugees in Uzbekistan were relocated by the Soviet authorities to the capital city of Tashkent.