This book is the final product of a major foresight project launched by the Foundation for European Progressive Studies in mid-2022 to explore the long-term implications of the war in Ukraine. Russia's aggression against Ukraine marked a historic turning point, upending earlier assumptions, carrying wide-ranging ramifications and fuelling uncertainty on the global stage. If the fog of war clouds prospects on the outcome of the conflict, it is certain that the implications of Russia's aggression will unfold over many years and affect the shape of the international order. The question is how.