The post-1945 liberal international order emerged from the devastation of the Second World War with a clear normative foundation: law would restrain power, institutions would discipline states, and sovereignty would be equally respected. The United Nations, established in 1945, embodied this vision. Leaders such as U.S. President Harry S. Truman argued that even powerful nations must deny themselves the “license to do as they please.” The order rested on principles such as sovereign equality, non-aggression, collective security, multilateral cooperation, open trade, and human rights.

Over decades, this framework institutionalised habits of cooperation through bodies like the UN, WTO, WHO, and arms-control regimes. While violations occurred, major powers at least paid rhetorical homage to international norms. Hypocrisy existed, but it acknowledged the legitimacy of rules. This created a minimum threshold of predictability and restraint in global politics.

In contrast, the current climate reflects a growing indifference toward multilateral norms. Unilateral actions, retreat from international agreements, weaponisation of trade, and selective application of international law signal a shift from rule-based order to power-centric pragmatism. The difference is not merely in behaviour but in attitude: from reluctant adherence to open scepticism. This erosion weakens the moral and institutional foundations of global governance.

The 21st century is defined by transnational challenges that transcend borders—climate change, pandemics, cyber threats, terrorism, and financial instability. These are often described as “problems without passports.” No single state, however powerful, can effectively manage them alone. Multilateral institutions provide coordination mechanisms, shared norms, and dispute-resolution platforms essential for collective action.

When major powers retreat from institutions such as WHO, UNESCO, or climate agreements, they create governance vacuums. These vacuums are either filled by other rising powers, leading to normative shifts, or result in fragmentation of global standards. For instance, withdrawal from climate frameworks undermines coordinated mitigation efforts, while scepticism toward arms-control regimes increases the risk of arms races.

The danger lies not in sudden collapse but in gradual decay. Fragmentation reduces predictability in trade and security, increasing transaction costs and mistrust. For middle powers like India, multilateralism acts as a shield against arbitrary power. Its weakening exposes smaller and medium states to coercion, thereby destabilising the broader international system.

The liberal international order was constructed under the leadership of major powers, particularly the United States. These powers were granted disproportionate authority—such as veto power in the UN Security Council—based on the assumption that their participation was essential for global stability. However, this concentration of authority created an inherent structural imbalance between power and accountability.

When powerful states selectively apply international law or invoke exceptionalism, institutional legitimacy erodes. For example, if sovereignty is disregarded in one context, other powers may cite precedent to justify similar actions elsewhere. The result is a cascading effect where norms lose binding force. This is evident in conflicts where vetoes paralyse collective security mechanisms.

Yet, major powers also remain indispensable for enforcing sanctions, funding peacekeeping, and sustaining global trade systems. The paradox is that global order depends on their restraint, not merely their strength. When political will declines, institutions become aspirational rather than authoritative. Therefore, reforming governance structures to enhance representation and accountability may be necessary to restore legitimacy.

The decline of normative restraint does not necessarily result in a third world war; instead, it can produce multiple smaller, protracted conflicts. When sovereignty is treated as negotiable, states may calculate that limited aggression carries manageable costs. The Russia-Ukraine conflict, tensions over Taiwan, and instability in parts of West Asia illustrate how regional disputes can persist without triggering global confrontation.

In such scenarios, international institutions struggle to enforce collective security due to veto politics or geopolitical alignments. The paralysis of the UN Security Council in certain crises demonstrates how institutional mechanisms can be weakened. Meanwhile, trade weaponisation and sanctions regimes become tools of geopolitical rivalry rather than collective enforcement of norms.

This pattern resembles an “interregnum” where the old order is fading but a new equilibrium has not yet formed. The cumulative effect of these regional conflicts erodes trust, disrupts supply chains, and diverts resources from global cooperation. Thus, norm erosion contributes to systemic instability through fragmentation rather than outright global war.

India operates in a strategic environment characterised by fluid alignments and strategic ambiguity. In such a context, rigid bloc politics may limit manoeuvrability. India’s approach has traditionally emphasised strategic autonomy—engaging with multiple power centres while safeguarding national interests. Participation in forums such as the Quad, BRICS, G20, and the UN reflects issue-based coalition building rather than exclusive alignment.

India benefits from a rules-based order, as it constrains hegemonic behaviour and ensures predictability in trade and security. Therefore, investing in multilateral reform—such as advocating UN Security Council reform and strengthening Global South representation—aligns with India’s long-term interests. Simultaneously, India must enhance national capabilities in defence, technology, and economic resilience to withstand potential coercion.

The challenge lies in balancing pragmatism with principle. India must support international law and sovereignty while navigating realpolitik pressures. By acting as a bridge between developed and developing worlds and promoting inclusive multilateralism, India can shape the evolving order rather than merely adapt to it.

Several structural factors explain the erosion of the liberal order. First, the redistribution of global power toward emerging economies has altered the balance that underpinned post-1945 institutions. Rising powers demand greater representation, while established powers resist structural reforms, leading to legitimacy deficits.

Second, domestic political shifts in major countries have fuelled scepticism toward globalisation and multilateral commitments. Economic inequality, job displacement, and nationalist narratives have contributed to a retreat from international cooperation. Third, technological changes—cyber warfare, digital surveillance, and information manipulation—have outpaced regulatory frameworks, weakening institutional authority.

Finally, unresolved historical grievances and geopolitical rivalries continue to shape state behaviour. When political will to uphold norms diminishes, institutions lack enforcement capacity. Thus, the erosion is not solely ideological but rooted in systemic transformations in power distribution, domestic politics, and technological change. Addressing these structural drivers is essential to prevent a slide into unmediated anarchy.