Tens of thousands of Jewish Holocaust-survivors, most of them being "repatriates" from the East, settled mostly in Lower Silesia creating Jewish cooperatives and institutions - the largest communities were founded in Wrocław, Szczecin, Dzierżoniów and Wałbrzych [REF].
10,000 - 15,000 Greeks and Slavomacedonians - Refugees of the Greek Civil War .