The thinking in Washington goes like this: for the “low cost” of Ukrainian lives and some American dollars, the West can end Putin’s strategic threat to the United States. No Americans are dying. It’s not like Iraq or Afghanistan ’01–’21. This is postmodern, something new, a clean great power war, Jackson Pollock for international relations—getting a lot of foreign policy mojo at little cost. It’s almost as if we should have thought of this sooner.Well, we did. It didn’t work out past the short run …