Closed city

A closed city is a city with travel and residency restrictions in the former Soviet Union, or in a CIS country. There are two major categories of closed cities: closed because of the presence of sensitive military or nuclear industry and border cities (in fact, whole border areas) closed for security reasons (military locations, radar stations, etc.). Foreigners, and in some cases local citizens, may not travel to closed cities.

See also

• Propiska
• Internal passport
• Gated community
• Naukograd