Not long ago in the sweep of history, countries that had once been buried behind the Iron Curtain, and even some Soviet republics, were transformed into members of the solidly democratic club. Some of those that weren’t, such as Ukraine, Georgia, and Kyrgyzstan, experienced mass revolts against rigged elections and corrupt misrule amid widespread public yearning to join the West. Free trade was again celebrated as an instrument of peace; Kant’s “democratic peace theory” enjoyed a revival.