Russian President Vladimir Putin’s February 2022 invasion of Ukraine changed the course of history. It did so most directly, of course, for the Ukrainians subjected to this brutal act of aggression. But the war also changed Russia itself far more than most outsiders grasp. No cease-fire, not even one brokered by a U.S. president fond of his Russian counterpart, can reverse the degree to which Putin has made confrontation with the West the organizing principle of Russian life. And no cessation