The frightening risk of Europe’s most devastating war in nearly 80 years is growing ever more real as the United States warns that Russia could launch a massive new invasion in Ukraine “on very short notice” and readies NATO forces to deploy in Eastern Europe. The catastrophic effects of a dramatic escalation in the Kremlin’s eight-year war on Europe’s frontline would profoundly affect the European community—and all Europeans should be stepping up to defend Ukraine and themselves from Putin’s ag