The Unraveling, How the Post-War Order Is Fraying and What Comes Next
On June 26, 1945, in San Francisco, United States President Harry S. Truman stood before the founding conference of the United Nations and delivered a speech that radiated conviction. He had seen the abyss of world war and was determined that humanity would not return to it. The UN, he insisted, would be the instrument through which authority tamed the old world of spheres of influence and predatory might.
“We all have to recognize – no matter how great our strength,” Truman declared, “that we must deny ourselves the license to do always as we please. No one nation … can or should expect any special privilege which harms any other nation … Unless we are willing to pay that price, no organization for world peace can accomplish its purpose. And what a reasonable price that is!”
Eighty-one years later, those words might sound startling to many of Truman’s successors. The world that once imagined it had buried the demons of the 1930s now finds them probing again—less dramatic, perhaps, but no less corrosive. The post-war order, born in the ashes of conflict, is fraying. The question is not whether it survives intact; it has already been hollowed out. The question is what replaces it.
The Language of International Law as Polite Fiction
The contemporary mood stands in stark contrast to Truman’s vision. The language of international law increasingly sounds like a polite fiction—a set of norms that are invoked when convenient and ignored when not. Analysts often perceive the foreign policy posture of major powers as one that treats international rules much as Italian drivers treat red traffic lights: less as binding commitments and more as optional tools, useful when they serve your interests, dispensable when they do not.
It is not that the United States invented unilateralism. Great powers have always been prone to exceptionalism, double standards, and bending rules just short of breaking them. But the open embrace of a “might is right” sensibility marks a shift from hypocrisy to indifference. Hypocrisy at least pays tribute to norms even while betraying them. Indifference does not give a damn about norms.
When a major power signals that sovereignty is negotiable, others take note. If Washington can disregard Venezuela’s sovereignty with minimal consequence, what stops Beijing from concluding that Taiwan’s status is similarly malleable? If Moscow can treat Ukraine as a historical correction rather than a sovereign state, what logic prevents New Delhi from deciding that a smaller neighbour’s objections are an inconvenience rather than a constraint?
The question ceases to be whether international law prohibits aggression. The question becomes whether the target is powerful enough to raise the costs of aggression. For decades, the fear of a third world war acted as a grim stabiliser. The horror of total conflict kept lesser conflicts in check. But if the guardrails weaken, the world risks not one great conflagration but a proliferation of smaller, grinding wars—each too limited to trigger global alarm, yet collectively capable of eroding the foundations of peace.
The Retreat from Multilateralism
This erosion is compounded by the retreat from multilateralism. Major powers have signalled a deep scepticism about the very idea of shared governance. Withdrawals from international organisations and agreements—from UNESCO to the World Health Organization to environmental and arms-control frameworks—are not isolated incidents but symptoms of a broader trend.
The problem is that the 21st century’s most urgent challenges are precisely those that no nation can solve alone. Pandemics, climate change, cyber threats, financial contagion—these are what former UN Secretary-General Kofi Annan called “problems without passports.” They are indifferent to borders and immune to unilateral solutions.
When the world’s most powerful states step back from collective action, the vacuum does not remain empty. Others step in, shaping institutions, norms, and standards in ways that reflect their own preferences. The result is not simply a shift in influence but a fragmentation of global governance itself. Instead of a single, if imperfect, system of rules and institutions, we risk a patchwork of competing blocs, each with its own rules, its own institutions, and its own vision of order.
The Paradox of Power
Perhaps the most profound obstacle to a stable world order lies in the paradox of power itself. Those entrusted with maintaining global order also possess the greatest capacity to disrupt it. The post-war order rested on their willingness not to do so. That willingness has faded in many cases.
The institutions established after the Second World War were noble in conception but unequal in design. They reflected the hierarchies of power prevailing at the time of their creation. Authority was concentrated in the hands of a few, while responsibility was shared by all. The UN Security Council, with its five permanent members holding veto power, is the most obvious example.
This imbalance has consequences. When powerful states act as both guardians and exceptions to the rules, the legitimacy of the system suffers. Why should smaller states abide by norms that the powerful can violate with impunity? Why should citizens trust institutions that seem designed to protect the interests of the strong?
The Fragile Ingredients of Order
The rule-based liberal international order was never a monolith. It was a patchwork of norms, institutions, and habits of cooperation. Its ingredients included sovereign equality, non-aggression, collective security, open trade, human rights, and multilateral problem-solving.
Each of these has been violated repeatedly—by great powers and smaller states alike. Yet the order endured because enough states believed that the alternative was worse. Today, that belief is wavering.
Sovereignty is breached with increasing brazenness. Non-aggression is honoured in the breach. Collective security is paralysed by vetoes. Trade is weaponised. Human rights are dismissed as ideological. Multilateral institutions are starved of legitimacy and resources.
Institutions may possess statutes and mandates, yet without political will, their authority remains largely aspirational. When powerful states ignore international law or apply it selectively, institutions lose credibility. Peace cannot be enforced by rules alone. It requires good faith, and good faith is increasingly in short supply.
The Persistence of Order
And yet, the order is not dead. It limps, it strains, it disappoints—but it persists. International courts still adjudicate disputes. Peacekeepers still deploy. Trade flows still depend on predictable rules.
Middle powers, from Europe to India to South Africa to Canada to Brazil, still invest in multilateralism because they know that without it, they are at the mercy of ruthless self-interested hegemons. They accept the famous dictum of Dag Hammarskjöld, the second UN Secretary-General, that “the United Nations was not created to take mankind to heaven, but to save humanity from hell.” Sometimes the best the world order can do is to prevent things from getting worse.
The Interregnum
We are living in what might be called an interregnum—the old world fading, the new one unformed. The danger is not that the system collapses overnight, but that it decays slowly, leaving a vacuum filled by opportunism and coercion.
The question is not whether the old order survives intact. It has already been hollowed out, its norms and institutions subverted. The question is what replaces it. A Sino-centric architecture? A world of competing blocs? A patchwork of issue-based coalitions? A return to unmediated anarchy?
Each of these possibilities carries its own risks. A Sino-centric order would reflect different values and interests than the US-led system. A world of competing blocs could replicate the tensions of the Cold War, with the added danger of fragmentation. A patchwork of issue-based coalitions might be too weak to address global challenges. A return to anarchy would leave the weak at the mercy of the strong.
The Task for This Generation
The promise of 1945 was that law could tame power. The peril of today is that power may once again tame law.
The task for this generation is not to resurrect the past. The old order cannot be restored; too much has changed, and its flaws were too many. The task is to prevent the future from sliding into a world where the only real rule is that there are no rules at all.
This requires a renewed commitment to multilateralism, not as a utopian project but as a pragmatic necessity. It requires building institutions that are more representative, more effective, and more legitimate than those we have. It requires recognising that in a world of interdependence, no nation’s interests can be secured in isolation.
And it requires remembering Truman’s words: that even the strongest must deny themselves the license to do always as they please. That price, he said, is reasonable. The question is whether we are still willing to pay it.
Q&A: Unpacking the Crisis of World Order
Q1: What was the foundational vision of the post-1945 world order, as articulated by President Truman?
A: Truman’s vision was that international law and institutions could restrain the exercise of power. He argued that even the strongest nations must deny themselves the “license to do always as we please” and that no nation should expect special privileges that harm others. The United Nations was conceived as the instrument through which this new approach to international relations would be realised. The underlying belief was that sovereignty was inherent in all nations, not a privilege granted by the strong, and that collective action could prevent a return to the horrors of world war.
Q2: How has the attitude of major powers toward international law shifted in recent years?
A: The article argues that there has been a shift from hypocrisy to indifference. Hypocrisy at least pays tribute to norms by acknowledging their existence even while violating them. Indifference does not care about norms at all. Major powers increasingly treat international rules as optional tools—useful when they serve interests, dispensable when they do not. This “might is right” sensibility erodes the foundations of the rule-based order because it signals that sovereignty is negotiable and that power, not law, determines outcomes.
Q3: What are the dangers of a retreat from multilateralism?
A: The retreat from multilateralism is dangerous because the most urgent challenges of the 21st century—pandemics, climate change, cyber threats, financial contagion—cannot be solved by any single nation. They are “problems without passports” that require collective action. When major powers withdraw from international institutions and agreements, they create a vacuum that others, like China, fill. This leads not just to a shift in influence but to a fragmentation of global governance, where competing blocs with different rules and norms replace a single, if imperfect, system.
Q4: What is the “paradox of power” that undermines world order?
A: The paradox is that those entrusted with maintaining global order also possess the greatest capacity to disrupt it. The post-war order rested on the willingness of powerful states not to use their power destructively. That willingness has faded. Moreover, international institutions like the UN Security Council reflect the hierarchies of power at the time of their creation, concentrating authority in a few hands. When powerful states act as both guardians and exceptions to the rules, the legitimacy of the entire system suffers. Smaller states have little reason to abide by norms that the powerful can violate with impunity.
Q5: What does it mean to say we are living in an “interregnum,” and what is the task for this generation?
A: An interregnum is a period when the old order is fading but the new one is not yet formed. The danger is not sudden collapse but slow decay, leaving a vacuum filled by opportunism and coercion. The task for this generation is not to resurrect the past—the old order cannot be restored—but to prevent the future from sliding into a world where the only rule is that there are no rules. This requires a renewed, pragmatic commitment to multilateralism, building more representative and effective institutions, and recognising that in an interdependent world, no nation’s interests can be secured in isolation. It requires remembering Truman’s lesson that even the strongest must accept limits on their power.
