No country has claimed to have achieved communism. Many other places have tried but it's usually crushed by capitalist or sometimes even by states claiming to be socialist. It's also a really simple and tbh ahistorical explanation to claim that communism didn't work simply because "it was confronted with reality".

[–] Quacksalber@sh.itjust.works -3 points 1 year ago* (last edited 1 year ago)

No country has claimed to have achieved communism

That may be your interpretation of that matter. But going with your interpretation, why is that? Maybe because communism fails every time anyone tries to make it a reality?