War fever is ramping up again across Europe. This has happened several times in the four and a half years since Russia invaded Ukraine, usually coinciding with important national elections — particularly those in Romania, Moldova, Hungary, Poland, and Germany — when certain domestic political parties have been demonized as “pro-Putin” and “security threats” to the rest of Europe. The war drums also get loud whenever increased military budgets are being debated within the governments of the Scandinavian and Baltic states, Finland, Germany, and Poland, as well as the European Commission. The ebb and flow of political battle cries against...