Which countries would make the list of failed socialist countries?

Which countries would make the list of failed socialist countries?

Answer:

This is a difficult and relatively ambiguous question as the idea of a strictly socialist state is often hard to define. Many modern nations have adopted practices of socialism within their policies but would not technically be described as socialist states. Nations such as Bulgaria, Cambodia, Mongolia, Poland, Romania, and the former state of Czechoslovakia have all had socialist states that eventually collapsed, but many of them continue to retain some of these practices; particularly Cambodia.