National closed society

The frontiers of certain communist countries are completely closed to foreign entry, and exit of nationals to non-communist countries is illegal. There is usually heavy censorship. Movement of people and information between communist countries is also restricted. Despite the doctrine of the withering away of the state, the state is the focus for all effort and ideology. Internationalism in any form may be banned. The policies of individual states may lean towards those of a dominating country within a communist world system, which is in effect an extension of the national closed societies.
(D) Detailed problems