From what you say, you obviously have no idea what communism is. Not USSR, nor Northern Korea, nor China, etc.. they were never communist countries, not even a "form" of communism. Communism, in its origin form, means no government, gift-economy, direct democracy(as opposed to representative) and workers controlling the means of production.

"A communist society would have no governments, countries, or class divisions." [1]

[1] http://en.wikipedia.org/wiki/Communism#Etymology_and_termino...