After the ceasefire
It is 2028. The war in Ukraine ended in an uneasy ceasefire eighteen months ago. Russian forces remain in occupied territories, and Ukrainian forces hold defensive positions, armed with American weapons and European money. The ceasefire talks failed to establish either a buffer zone or an observer mission because the parties could not agree on the terms. Europeans have given vaguely formulated “security guarantees” with an ill-defined American backstop, but NATO has no clear presence near the contact line.
One morning, Ukrainian intelligence detects Russian armoured movements towards the ceasefire line. The government in Kyiv claims Russia is preparing for invasion; officials in Moscow insist it is routine repositioning. Within 48 hours, shooting starts and each side blames the other. Russian forces cross the ceasefire line at three points. Calls go out to European capitals and Washington, but no one agrees on what the intelligence shows. The security guarantors reach for the ceasefire documents and find they say different things depending on who is reading them.
Nobody knows what to do—whether NATO should respond militarily, whether European states should act alone, or whether America, focused since 2027 on a series of interventions in Latin America, should engage at all. Nobody has agreed what the rules are, what triggers intervention, what constitutes a proportionate response or who decides.
The outcome of this scenario is chaos and escalation driven by uncertainty and domestic political pressure. These are the conditions that precede catastrophic wars. The goal of this paper is to help prevent that scenario or, more precisely, to ensure clear answers exist before the shooting starts. The post-war environment in Europe will be unstable in the near term and perhaps for a generation or more because the war will almost certainly end without a genuine peace settlement that resolves key questions of sovereignty, security, power or identity. The wounds are too deep and the sides too evenly matched to agree on a comprehensive peace.
This is not an unusual situation after inconclusive wars. To adapt the historian Michael Howard’s insight, the end of fighting does not itself create peace. Between war and peace lies a large and dangerous space of armistices, frozen conflicts and unstable political settlements. The task for American and European policymakers will be to build enough structure around that dangerous space to prevent it from producing the next war.
America and Europe can do this by transitioning from chaotic confrontation with Russia to “managed disorder”: a state in which rivalry remains, but becomes less vulnerable to accident, panic and domestic political pressure.
To achieve this state of managed disorder, this paper proposes a staged framework built on verification, certification and conditional incentives. The framework would temporarily freeze facts on the ground, but not legitimise them, and give the main actors reason to adhere to agreements. This would help American and European policymakers maintain stability in Europe, defend Ukraine and deter further revisionism while reducing the risk of escalation. It would also give Russia a sense of safety and a seat at the table to discuss European security. Hostility would persist but it would be channelled into rules, limitations and predictable behaviour.
Managed disorder does not imply legitimising territorial conquest or rewarding aggression. It also falls well short of a durable settlement. Importantly, it does not require “trust”, a commodity that is generally lacking in international affairs and particularly in relations with Russia.
However, building such a system will be politically hard. Russia may prefer chaos to managed disorder. Ukraine may reject any arrangement that appears to freeze partition. European states will disagree over deterrence, sanctions, reconstruction, enlargement and engagement with Moscow, and the US may remain indispensable but unreliable. But these are not objections to managed disorder; they are the reasons it is needed. Its purpose is precisely to manage these political pressures through rules, incentives and procedures before a crisis makes improvisation the only option.
This paper traces the hard road to the modest achievement of managed disorder. It first outlines the sources of disorder after the war in Ukraine and why the key players might find managed disorder preferable to the alternatives. It then describes a staged plan to get from a ceasefire in Ukraine to a hopeful but realistic stability. The plan accepts that the future is contingent and will certainly surprise us. It therefore seeks to adapt to circumstances even as it keeps in mind where we want to go and what we want to avoid.
About the authors
Jeremy Shapiro is the research director of the European Council on Foreign Relations. His areas of focus include US foreign policy and transatlantic relations.
Samuel Charap is Distinguished Chair in Russia and Eurasia Policy and a senior political scientist at RAND. His research interests include the foreign policies of Russia and the former Soviet states; European and Eurasian regional security; and US-Russia deterrence, strategic stability and arms control.
Bob Deen is the General Director of the Netherlands Institute for International Relations “Clingendael” and specialises in matters of European security, with a focus on Eastern Europe, the Caucasus and Central Asia. Before joining Clingendael in 2020, he worked as Head of Section and Senior Adviser to the OSCE High Commissioner on National Minorities.
Hiski Haukkala is the director of the Finnish Institute of International Affairs. He is also an adjunct professor of international relations at Tampere University and a senior research associate at RAND Europe. He is the author of numerous books and articles on EU foreign policy, Russia and International Relations.
Ivan Krastev is chair of the Centre for Liberal Strategies, Sofia, and a permanent fellow at the Institute for Human Sciences, Vienna. He is the author of “Is It Tomorrow Yet? Paradoxes of the Pandemic”, among many other publications.
Hanna Notte is the director of the Eurasia programme at the James Martin Center for Nonproliferation Studies. Based in Berlin, she has written extensively about Russian foreign policy and is the author of We Shall Outlast Them: Putin’s Global Campaign to Defeat the West (W. W. Norton & Co).
Jim O’Brien is a distinguished visiting fellow at the European Council on Foreign Relations. He previously served as Assistant Secretary of State for European and Eurasian Affairs in the Biden administration.