Vietnam and Cuba are absolutely inarguable and Laos and the DPRK are still kicking. The USSR did eventually fall to sabotage after ~75 years, but by the metric that any state that ever dissolves is somehow to be entirely considered a "failed attempt," and we would need to say the same of a great many "liberal" states.
Vietnam and Cuba are absolutely inarguable and Laos and the DPRK are still kicking. The USSR did eventually fall to sabotage after ~75 years, but by the metric that any state that ever dissolves is somehow to be entirely considered a "failed attempt," and we would need to say the same of a great many "liberal" states.