Russia’s barbaric invasion of Ukraine constitutes a real and present danger to world peace and a rules-based order in Europe. But even more ominous than Russian war crimes are the neo-Stalinist ideas that the Kremlin is using to justify them. In addition to deepening totalitarianism in Russia, Putin is exporting his designs abroad in the hopes of helming a new “antidemocracy international”—to the delight of his Western sympathizers and dictators worldwide. The invasion of Ukraine has laid bare the critical need to defend and promote democracy in Europe, the United States, and elsewhere.