They've already called that bluff, it's no use attempting to bluff again. The current bet is that NATO will not get involved militarily because doing so is arma

They've already called that bluff, it's no use attempting to bluff again. The current bet is that NATO will not get involved militarily because doing so is armageddon. They knew there would be sanctions and they knew there would be material aid so whatever they have planned will play out on a short enough timeline that the sanctions won't starve it and with some number of predicted losses. I don't think they've fully played their hand yet, it seems like they're setting something up.