Even a truncated Russian Federation has four times the pre-war population of Ukraine. It enjoys well over 10 times the Ukrainian gross domestic product. Russia covers almost 30 times Ukraine's area. And how does Ukraine expel Russian troops from its borders when its Western allies must put particular restrictions on their life-giving military and financial aid? The interests of Europe and the United States are not quite the same as those of a beleaguered Ukraine. NATO also wants Russian President Vladimir Putin humiliated, but only if the war can be confined within the borders of Ukraine. Even a truncated Russian...