Central and Eastern Europe (CEE) is a generic term for countries located in central, southeast, and Eastern Europe. It is more a political and social construct than a geographical reality. Very often the term CEE is used to designate the European countries under (former) communist regimes. It broadly includes the nations bordered by the Baltic and Barents seas on the north; the Adriatic, Black, and Caspian seas and the Caucasus Mountains on the south; and the Ural Mountains. The population of CEE countries totals more than 110 million people (CIA, the World Factbook), with Poland and Romania being the largest states in terms of both population and territory.