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Communism ( a classless stateless society) has never existed in Cuba.
Communism (a classless stateless society based on production for use and democratic control) has never existed in China.
The US was worried about other countries becoming powerful. No connection to Communism (a classless stateless society based on production for use).
Communism (a classless stateless society based on production for use) has never existed.
Yes: both words describe a moneyless classless stateless society based on production for use.