Several definitions of Eastern Europe exist today, but they often lack precision or are extremely general. These definitions vary both across cultures and among experts, even political scientists, recently becoming more and more imprecise.
The United Nations Statistics Division developed a selection of geographical regions and groupings of countries and areas, which are or may be used in compilation of statistics. In this collection, the following ten countries were classified as Eastern Europe: Belarus, Bulgaria, Czech Republic, Hungary, Moldova, Poland, Romania, Russia, Slovakia, Ukraine. The assignment of countries or areas to specific groupings is for statistical convenience and does not imply any assumption regarding political or other affiliation of countries or territories by the United Nations. Rather than being geographically correct, United Nations' definition encompasses all the states which were once under the Soviet Union's realm of influence and were part of the Warsaw Pact.