War has been an ever-present feature of human existence. The analysis of wars has tended to focus on either their causes or the military and strategic consequences of a conflict. This book argues that war can have a much wider impact across layers of society that go beyond international boundaries. It presents a heuristic multi-disciplinary framework for analysing the ripple and backwash effects across five connected analytical layers around the world: material; human capabilities; economic; values belief and attitudes; policy and governance; and power. Through this framework, the book introduces a set of empirically rich and theoretically informed studies which examine the first consequences of the war in Ukraine following the invasion of Russia in February 2022. This multi-disciplinary approach shows that the effects of the war were much deeper and sustained. This volume will be of interest to students and scholars of international humanitarian law, security studies, peace and conflict studies, and European history. The chapters in this book were originally published as a special issue of Policy Studies.