One year ago, Russia unleashed a war that has brought horror to Ukraine. But there’s no doubt that the implications of this war reach much farther: It has shaken the European security order, and those effects may be felt on a global scale. The war has shown the danger of Russian revanchism and the risk of living next door to a power that embraces war as a coercive tool. It’s also highlighted the West’s role as a major protector of the democratic world and Ukraine’s advantages as a result of three decades of democratic development. Issues of reconstruction, war crimes, and sanctions might break new ground in the role these issues play in international diplomacy. The war could affect China’s ambitions and nuclear decisionmaking. Perhaps surprisingly, Russian isolation because of the war is less than some might think. All in all, Russia’s war on Ukraine is having major repercussions for the international order.