Since February 24th, the world seems to live every minute of the war on Ukraine to its fullest. The Russian invasion of Ukraine has not only sent shockwaves through the rest of Europe but also shattered the widely held belief that the horrors of the Second World War were a thing of the past. Since then, powerful undercurrents of change have been at work in the new understanding of the security challenges of the twenty-first century. Very few in the West were able to predict that Russia’s 2014 annexation of Crimea would durably transform the entire international system into an increasingly bipolar confrontation between newly emerged military blocs. Even fewer strongly warned against the temptation of thinking that the world was right back on the track of the old Cold War logic.