Consequences can be applied without resorting to total war. But, if there were to be total war, then Russia would have made the decision to go that route, and it's something they would have done anyway. Russia is an insecure and paranoid nation, and always has been. It's not surprising, given that its people have been oppressed and under the thumb of tyrants for millenia.
“Consequences can be applied without resorting to total war.”
What are you going to do if Russia invades Finland and Sweden? And then maybe Poland?