Winning the war isn't enough if you suffer greatly to win it and get little if anything to actually show for your victory. "Profit" is necessary. In this case

Winning the war isn't enough if you suffer greatly to win it and get little if anything to actually show for your victory. "Profit" is necessary. In this case, the cost of ignoring Russia's attacks is far less than the cost of winning a war against Russia. If this relationship flips, then we might get war.