Christopher Nolan's The Odyssey offers an unexpectedly sharp lens for understanding the contemporary erosion of the liberal international order and America's evolving role within it. While the film delivers the visual grandeur and narrative complexity audiences expect from the director, its deeper resonance lies not in ancient mythology but in the uncomfortable truths it reveals about power, perception and the fragility of international systems designed to constrain great power competition.

The film's central irony—that the Sea Peoples, feared throughout the Mediterranean as mysterious and destructive raiders, are revealed to be Greek soldiers returning from Troy—captures a timeless paradox: how those who view themselves as liberators and protectors may appear to others as conquerors and aggressors. The very forces that inspire terror when unknown become comprehensible, if not sympathetic, when their identity is unveiled. Yet understanding does not automatically restore trust or legitimacy. This distinction between intention and perception, between self-image and external reality, cuts to the heart of contemporary international relations.

For nearly eight decades following the Second World War, the United States positioned itself as the principal guarantor and architect of a liberal international order explicitly designed to prevent the recurrence of unconstrained great power competition. Through institutions such as the United Nations, the Bretton Woods framework, collective security arrangements and principles of mutual respect for sovereignty, Washington created a system premised on a revolutionary notion: that powerful states would voluntarily submit to rules and norms, that law would supersede force in settling international disputes, and that predictability would replace the volatility of pure power politics.

This achievement represented far more than mere military or economic dominance. The true accomplishment was ideological: convincing much of the world that an ordered international system, however imperfect in application, was preferable to a return to the anarchic and destructive competition that had characterized the pre-1945 era. Countries across Europe, Asia and beyond came to accept American leadership not solely because they lacked alternatives, but because the system offered genuine benefits—access to markets, security guarantees, institutional voice and the promise that rules would bind all participants equally.

Yet this foundational premise has grown increasingly strained. As American strategic competition with rising powers intensifies, particularly with China and Russia, Washington has demonstrated a growing willingness to bypass, reinterpret or suspend the very principles it championed. Economic coercion through tariffs and sanctions, deployed against allies and adversaries alike, suggests that trade rules apply selectively. Strategic withdrawals from multilateral agreements—whether climate accords, arms control treaties or trade frameworks—signal that institutional commitment depends on immediate national advantage. The weaponisation of supply chains, financial systems and technological access transforms the global economy into an instrument of geopolitical competition rather than mutual benefit.

Most troublingly, unilateral military actions undertaken without Security Council authorization challenge the principle that force should be constrained by international law. These actions, individually justified on grounds of national security or humanitarian intervention, collectively reinforce a broader message: that powerful states retain the prerogative to act without constraint when they determine their interests demand it. For smaller and middle powers watching these developments, the implication is clear—the rules that were meant to protect them apply differently to those with the capacity to enforce their own preferences.

The paradox is both sharp and consequential. The liberal international order was explicitly constructed to prevent precisely this kind of behaviour—the exercise of unconstrained power by dominant states. Its architects believed that binding themselves and others to rules and institutions would create mutual restraint and predictability. Yet the order's chief builder increasingly appears willing to treat those constraints as negotiable rather than binding, to view rules as tools to be deployed against competitors rather than as mutual commitments that strengthen the entire system.

This transformation mirrors the Sea Peoples paradox in Nolan's narrative. The people of Ithaca tremble at rumours of savage raiders emerging unpredictably from the sea, their identity unknown, their intentions assumed malign. The terror stems partly from genuine danger but significantly from uncertainty and the imagination filling the void. Only when their identity as fellow Greeks is revealed does the narrative gain full resonance—not as an exoneration, but as a recognition that those inspiring such fear were closer to home all along. The destruction they caused, whether intentional or incidental to their homeward journey, was real. The difference is that now their actions can be contextualised, understood within a narrative of necessity rather than pure malevolence.

Applied to contemporary international politics, this parallel becomes especially unsettling. Smaller powers and rivals increasingly describe American behaviour in language that echoes the Ithacan fear of unknown maritime threats—unpredictable, driven by forces beyond their control, threatening to upend established arrangements and hierarchies. The difference is that American power is not mysterious. Its identity is known, its capabilities visible, its intentions increasingly explicit. What appears to have changed is the constraint previously accepted as binding.

The greatest threat to any order rarely originates from those outside its boundaries. Rather, it emerges when the institutions and powers entrusted with defending that order gradually begin to resemble the forces they once opposed. When rule-based systems give way to rule-making systems, when institutions function as instruments of particular interests rather than mechanisms of collective governance, the psychological and practical foundations supporting the order erode simultaneously.

For Southeast Asian countries and other regional powers dependent on a rules-based international system, the implications are profound. Malaysia, Vietnam, the Philippines and Singapore have all benefited from the post-1945 order's emphasis on sovereign equality, institutional voice and the notion that disputes should be resolved through law rather than force. The freedom of navigation principles, international trade frameworks and the legitimacy of smaller states in multilateral institutions all rest on the premise that rules bind all participants. As that premise weakens, smaller powers face a more fluid and potentially more dangerous environment where proximity to great power competition becomes a vulnerability rather than a source of security.

Nolan's genius lies in suggesting that this trajectory is not inevitable but nearly so—that institutions and orders survive only so long as the powers that created them remain committed to their constraints. The Odyssey, at its deepest level, warns that legitimacy cannot be maintained through force alone, that those who see themselves as liberators must remain conscious of how their actions appear to those they claim to protect, and that the greatest danger to an order comes not from external assault but from the quiet abandonment of the principles that made it worth defending in the first place. These lessons, drawn from ancient mythology and filtered through modern cinema, carry urgent contemporary relevance as the architects of the post-war system appear increasingly willing to operate as if the restraints they once championed were temporary conveniences rather than permanent commitments.