Plenty has been written about the Russian attack on Ukraine, some wise, some foolish. One of the best analyses I’ve seen is this one by Robert Kelly written for the website 19fortyfive. His conclusion:
Russia’s best chance is to win a limited victory quickly – before all the political and logistical kinks in the NATO supply effort are worked out – and seek a negotiated peace. If not, Russia will be trapped in a full-fledged proxy war with a vastly wealthier, more productive opponent supplying a tough, determined local client. It cannot win that fight.
Led by an ailing autocrat, Russia is in a conflict he chose to enter, from which no reasonable exit may exist.