It should be apparent to all that Putin started this knowing that sanctions would be imposed. Obviously sanctions will not matter to Russia. This is a well planed and orchestrated endeavor on their part with all the moves identifed before the game started. He knows NATO will not fire the first shot, so he can take what ever he wants without a fight. Way after it is to late someone might throw a punch.
Russia will only use the sanctions as an excuse to amp up the conflict.