Multipolarity as Liberal Order: Continuity Through Transformation
Introduction
The international system stands at what observers describe as a critical inflection point, with the post-Cold War "unipolar moment" giving way to a reconfigured landscape defined by major-power contestations and burgeoning multipolarity. This transition has prompted vigorous debate about whether the Liberal International Order (LIO)—the institutional and normative framework established after 1945—is being replaced by something fundamentally different. The prevailing narrative, articulated by figures ranging from John Mearsheimer to German Chancellor Friedrich Merz, holds that the rules-based order has collapsed, giving way to a new era of raw power politics.
This essay defends a contrary position: multipolarity represents another version of the liberal international order rather than its replacement. The liberal order is not being supplanted but is undergoing a transformation—from a unipolar, Western-dominated system to a more diffuse configuration that nonetheless retains the core institutional infrastructure, normative commitments, and operational logic of liberal internationalism. This continuity manifests through three mechanisms: the persistence of liberal institutional architecture, the expansion rather than rejection of liberal norms, and the adaptation of multilateral frameworks to accommodate shifting power distributions.
Deconstructing the Liberal International Order and Multipolarity
Understanding why multipolarity constitutes an evolution rather than a replacement requires clarity on what the LIO actually entails. The LIO encompasses five core components: openness in trade, commitment to loosely regulated multilateral relationships, institutional security cooperation, foundation in international society, and orientation toward liberal democratic progress. These elements were institutionalized through the United Nations system, Bretton Woods institutions, and a web of alliances and partnerships that together created what scholars term a "rules-based" framework for international relations.
The term "rules-based order" itself reflects an important linguistic evolution. Western leaders increasingly employ this phrasing rather than "liberal international order" to emphasize procedural fairness—rules that all states theoretically accept—rather than explicitly liberal ideological commitments. This shift from promoting specific liberal norms to maintaining stability and predictability represents adaptation, not abandonment.
Multipolarity, in contrast, denotes a distribution of power where multiple states possess significant capabilities and influence. Contemporary multipolarity differs from historical precedents in crucial respects. Unlike the nineteenth-century European balance of power system or the Cold War bipolar structure, today's multipolarity operates within an institutional framework that constrains and channels competition. As one analysis observes, power is "no longer concentrated but diffused across a multipolar spectrum, where economic networks are being systematically weaponised and security postures are dictated by the raw imperatives of great-power rivalry". Yet this competition occurs within parameters set by liberal institutions and norms that have proven remarkably resilient.
The Institutional Persistence Thesis
The most compelling evidence for continuity lies in the endurance of liberal institutional architecture. Despite frequent declarations of its demise, the United Nations system, International Monetary Fund, World Bank, and World Trade Organization continue to function as the primary forums for international cooperation. Even as critics highlight their inadequacies, these institutions remain the reference point for global governance.
Consider the paradox of institutional critique: states that challenge the existing order simultaneously seek to reform, capture, or create alternatives to it. China participates extensively in UN institutions even as it develops parallel frameworks through the Belt and Road Initiative and Asian Infrastructure Investment Bank. India pursues "strategic autonomy" while engaging deeply with multilateral institutions. Russia, despite its confrontational posture, maintains its UN Security Council seat and engages with international financial institutions.
This pattern suggests that the LIO's institutional infrastructure enjoys what might be called "lock-in" effects. Once established, international institutions create constituencies, generate expertise, and embed expectations that make their wholesale replacement extraordinarily difficult. As Ikenberry argues, while the US-led hegemonic order may be in decline, "the foundational ideals of liberal internationalism remain deeply embedded in global political structures". The liberal project may endure "in a reconfigured or pluralistic form"—precisely the multipolar variant this essay describes.
Normative Continuity: The Expansion of Liberal Principles
A second dimension of continuity involves the expansion rather than rejection of liberal norms. The rise of powers from the Global South has been accompanied by demands for greater inclusion within the existing normative framework, not its abolition. Countries like India, Brazil, and Indonesia pursue visions of international order that emphasize "strategies of non-alignment, strategic autonomy, and selective or transactional cooperation with the current order". They seek to reshape the order's operation, not replace its foundational principles.
This dynamic reflects what might be termed "normative appropriation." Emerging powers embrace core liberal principles—sovereign equality, non-intervention, peaceful dispute resolution—while challenging the Western monopoly over their interpretation. The Global South's commitment to international law, as measured through UN General Assembly voting alignment, consistently exceeds that of the United States. This reveals a crucial irony: those most critical of the LIO's operation are often its most consistent defenders in terms of fundamental norms.
The language of "rules" rather than "liberal values" facilitates this appropriation. When Western leaders invoke the "rules-based order," they appeal to procedural legitimacy that non-Western states can endorse even while contesting specific rule interpretations. This rhetorical shift opens space for multipolar participation within a liberal framework.
The Multipolar Adaptation of Multilateralism
The third continuity mechanism involves the adaptation of multilateral frameworks to accommodate shifting power distributions. Multipolarity does not negate multilateralism but transforms its operation. Traditional institutions are being supplemented by new arrangements that reflect contemporary power realities while maintaining liberal operational principles.
The proliferation of parallel institutions—BRICS, the Shanghai Cooperation Organisation, the New Development Bank—illustrates this adaptive dynamic. These frameworks are not replacements for liberal multilateralism but complements to it. They operate alongside existing institutions, addressing gaps and reflecting the preferences of new power centers while adopting similar institutional forms and practices. As one observer notes, "there is no need to destroy them prematurely, which would only add to the chaos"; rather, "parallel institutions" should be created within existing frameworks.
This institutional pluralism represents a liberal response to shifting power distributions. The LIO has historically accommodated diversity—the Bretton Woods system incorporated significant variation in economic models, and NATO membership has not required ideological uniformity. Contemporary multipolarity extends this pluralism to include more diverse voices and preferences while preserving the underlying liberal commitment to institutionalized cooperation.
Challenging the Replacement Narrative
The claim that multipolarity replaces the LIO rests on contestable assumptions about what constitutes fundamental change. Proponents of the replacement thesis point to US withdrawal from global leadership, the rise of authoritarian alternatives, and the erosion of multilateral consensus. Yet these developments, while significant, do not amount to systemic replacement.
Consider the evidence marshaled for replacement. Mearsheimer's argument that the LIO was "flawed from the start and thus destined to fail" reflects a particular theoretical lens—offensive realism—that systematically underestimates the role of institutions and norms. His claim that "a liberal international order is possible only in unipolarity" is contradicted by the historical record of the nineteenth century, when significant liberal cooperation occurred under multipolar conditions, and by contemporary evidence of ongoing liberal cooperation in areas like climate change and public health.
Similarly, the "rise of the rest" narrative, while capturing important power shifts, often conflates capability increases with ideological rejection of liberal principles. The Global South's embrace of alternative institutional frameworks reflects a desire for greater influence within the existing system, not its rejection. As one analysis observes, "the current order is not merely a bipolar reenactment of the past. Rather, it is a more complex constellation of power, where actors like the European Union, a Russia that is becoming more assertive, and a more confident India, are staking their strategic agency". This complexity is characteristic of liberal pluralism, not its antithesis.
The Limits of Liberal Transformation
Acknowledging continuity does not require denying significant change. The liberal order under multipolarity differs from its unipolar predecessor in important respects. The United States no longer exercises hegemonic control over institutions it once dominated. Rule interpretation is increasingly contested. Authoritarian powers participate in liberal frameworks while maintaining domestic systems incompatible with liberal democratic norms.
These developments strain the LIO's operation and legitimacy. The selective application of rules—as exemplified by the 2003 Iraq invasion and inconsistent approaches to international law—has undermined credibility. The loss of moral authority has "naturally raised questions of legitimacy" for the order. Rising powers from the Global South view the LIO with justified skepticism, associating it with "deep hypocrisy" and double standards.
Yet these tensions reflect the LIO's evolution, not its replacement. The order has always been contested and imperfect. The post-1945 period saw significant exclusion of non-Western voices, institutionalized hierarchy, and selective application of principles. Contemporary multipolarity brings these contradictions to the surface while maintaining the institutional and normative framework within which they are debated.
Conclusion
The transition from unipolarity to multipolarity represents a transformation of the Liberal International Order, not its replacement. Three mechanisms sustain continuity: the persistence of liberal institutional architecture, the expansion rather than rejection of liberal norms, and the adaptation of multilateral frameworks to accommodate shifting power distributions.
This conclusion carries significant implications for understanding contemporary international relations. The framing of current developments as an existential crisis requiring wholesale replacement obscures the adaptive capacity of liberal institutions and the extent to which emerging powers seek inclusion within, rather than rejection of, the existing framework. It also risks self-fulfilling prophecy—declaring the order dead may accelerate its decline while diverting attention from reform possibilities.
The future of the LIO in a multipolar context depends on its capacity for genuine inclusion and reform. Addressing the legitimate grievances of the Global South, resolving institutional imbalances, and ensuring procedural fairness are essential to maintaining legitimacy. The transition to multipolarity offers opportunity for liberal renewal—if the principles of openness, cooperation, and rules-based engagement can be extended to new power centers and diverse perspectives.
The liberal international order is not dying; it is democratizing. Multipolarity represents not the end of liberal internationalism but its expansion to encompass a wider range of voices and interests within a framework that, despite its imperfections, remains the best available foundation for global cooperation.