I’ve said it before. Spending a billion now to defang Russia as part of a united front, leaving it wary of invading anybody else in Europe in the future, is a lot cheaper than having later to actually go to full-on war. It’s good risk mitigation, in other words. People always resent spending money on risk controls because it appears that the money is spent for no gain — if the control works, the bad thing never actually happens. But if you don’t spend the money, you sure as hell regret later that you missed your chance.