BERLIN – Russia’s full-scale invasion of Ukraine on Feb. 24, 2022, changed everything for Ukraine, for Europe, and for global politics. The world entered a new era of great-power rivalry in which war could no longer be excluded. Apart from the immediate victims, Russia’s aggression most concerned Europe. A great power seeking to extinguish an independent smaller country by force challenges the core principles upon which the European order of states has organized itself for decades. Russian Pres