Mithras Yekanoglu

by Mithras Yekanoglu

INTRODUCTION

In the 21th century sovereignty is no longer solely asserted through flags, constitutions or conquests, it is increasingly manufactured, reclaimed and engineered. Nowhere is this more evident than in the strategic rise of artificial islands, structures that challenge the foundational assumptions of maritime law and blur the line between geography and geopolitics. These engineered landmasses are not simply products of construction; they are instruments of national will, tokens of territorial ambition and tools for legal transformation. Their emergence forces international legal doctrine to confront a new question: when a state builds land from the sea, does it build law along with it?

The rise of artificial islands is not merely a technical phenomenon, it is a legal revolution in disguise. The existing framework provided by the 1982 United Nations Convention on the Law of the Sea (UNCLOS) draws clear distinctions between natural features and artificial constructs, particularly regarding the entitlements to territorial sea, exclusive economic zones (EEZs) and continental shelves. However, as states increasingly mobilize engineering capabilities to assert claims in disputed waters, the legal line separating “natural” and “artificial” becomes both politically manipulated and judicially contested. The ambiguity in Articles 60 and 121 of UNCLOS, coupled with the strategic silence on militarized or habitable artificial platforms, creates a profound legal vacuum a vacuum now filled by geopolitics rather than jurisprudence.

China’s aggressive transformation of reefs into sprawling military fortresses in the South China Sea has sparked global controversy, while smaller states such as the United Arab Emirates and the Netherlands quietly reshape coastlines for economic, environmental and touristic gain. Artificial islands are no longer coastal anomalies; they are now geostrategic leverage points, sites of resource access, military deployment and legal experimentation. This shift transforms the ocean from a shared commons into a contested theatre of engineered authority one where the tools of sovereignty are bulldozers, dredgers and cement mixers.

Despite their growing relevance, artificial islands remain underdefined and underregulated in international law. They are treated as neither land nor vessel, neither fully sovereign nor fully void. Their legal status remains suspended in a dangerous ambiguity that permits strategic abuse. For example, while UNCLOS prohibits artificial islands from generating territorial sea or EEZ, the enforcement of this restriction is weak and states continue to de facto treat them as sovereign territory. This erosion of legal clarity invites conflict, especially in regions of overlapping claims and heightened militarization.

Compounding this challenge is the specter of climate change, which raises urgent questions about the survival of low lying island nations and the validity of maritime boundaries tied to features that may disappear underwater. In response, some states have considered building artificial replacements, raising a radical possibility: could sovereignty migrate from natural islands to their engineered successors? Can law recognize the continuity of statehood through construction and if so, under what normative conditions?

This thesis argues that international law is entering a new epoch, one defined not by the discovery of new lands but by their deliberate fabrication. It contends that artificial islands represent a legal frontier where existing norms are insufficient, jurisprudence is inconsistent and power outpaces principle. The central question this thesis seeks to address is: How must international maritime law evolve to accommodate, regulate and possibly redefine sovereignty over artificial islands in the age of engineered territory?

To answer this, the study undertakes a multidimensional analysis of legal texts, state practices, arbitral decisions and strategic policy frameworks. It maps out not only the doctrinal limitations of current law but also proposes new normative categories including the idea of “engineered sovereignty” and “constructive jurisdiction.” It seeks to frame artificial islands not as anomalies but as anticipations of a broader legal transformation: a future where territory is no longer inherited but manufactured and where law must follow concrete not just tradition.

This introductory chapter thus sets the foundation for a comprehensive investigation into the legal, strategic and environmental implications of artificial island construction. It highlights the urgency of establishing a coherent legal framework that preserves the integrity of international order while acknowledging the technological and geopolitical realities of the 21th century. In doing so, it aims to position artificial islands as the crucible in which the next evolution of maritime sovereignty will be forged or fractured.

Legal Definition and Status of Artificial Islands under UNCLOS

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982, remains the foundational treaty governing the world’s oceans, encompassing navigational rights, maritime zones and the legal status of landforms. Yet, despite its comprehensive framework, UNCLOS was written in an era that could not foresee the large scale engineering of maritime territory. The Convention’s provisions relating to artificial islands, primarily found in Article 60 (Part V) and Article 121 (Part VIII) fail to fully anticipate the political and technological sophistication of modern land reclamation projects. As a result the legal definition, status and consequences of artificial islands under UNCLOS remain fragmented, outdated and highly susceptible to interpretive manipulation by assertive states.

Article 60 of UNCLOS explicitly refers to artificial islands in the context of Exclusive Economic Zones (EEZs), granting coastal states the right to construct and authorize such structures within their EEZs. It stipulates that artificial islands do not possess the status of islands and shall not have territorial seas of their own. Moreover, the article underscores the need for safety zones around such structures and mandates due notice of their existence. However, the legal language used is functional rather than ontological it regulates artificial islands as hazards to navigation and tools of economic exploitation not as potential instruments of sovereignty or geopolitical assertion. This limited legal recognition creates a vacuum where engineered constructions, despite being physically indistinguishable from natural landforms in some cases are treated as juridical nullities.

Article 121, on the other hand, defines the regime of islands and makes a crucial distinction between “islands” capable of sustaining human habitation or economic life and “rocks” which cannot, where the latter are excluded from generating EEZ or continental shelf rights. While this article has been central to many maritime disputes, including the landmark South China Sea Arbitration (Philippines v. China, 2016), it remains silent on artificial islands. The omission is striking: UNCLOS does not offer a coherent definitional framework to determine whether artificial islands might ever be treated as “constructive islands” in legal theory. This absence leads to doctrinal confusion, particularly when engineered structures mimic the form, function and appearance of natural islands but are excluded from legal recognition due to their man-made origin.

In the aforementioned arbitration, the tribunal ruled that none of the features claimed by China in the Spratly Islands qualified as islands under Article 121(3) and thus could not generate EEZs. Moreover, it confirmed that artificial islands could not alter the legal entitlements of maritime zones. While the ruling reinforced textual clarity, its enforcement capacity remains limited, especially given China’s outright rejection of the decision. This highlights a structural weakness in UNCLOS: its legal pronouncements depend on voluntary compliance not binding enforcement, particularly in cases involving permanent members of the UN Security Council.

The distinction between natural and artificial features is no longer merely academic; it now lies at the heart of major geopolitical confrontations. Artificial islands built by China in the South China Sea, such as Fiery Cross Reef and Mischief Reef have been equipped with runways, missile silos and radar systems. Although technically artificial, these constructions now operate as de facto military bases, exerting functional sovereignty in contested zones. Yet under international law, they remain “legal phantoms” objects with no right to territorial waters, sovereignty claims or extended maritime zones. This disconnect between physical control and legal recognition creates an unstable legal equilibrium, one where force and construction, rather than treaty obligations, determine facts on the water.

Legal scholars have responded to this vacuum with diverging theories. Some argue that artificial islands should be given partial recognition when they exhibit permanence, functionality and human habitation criteria that would allow legal differentiation between minor installations and state-scale engineered territories. Others caution that such recognition risks legitimizing unlawful expansionism and could encourage a new era of construction-based imperialism, where wealthier states “build sovereignty” through dredging and concrete rather than diplomacy and law. The fear is not unfounded; the moment artificial islands are allowed to produce territorial or maritime rights the entire architecture of UNCLOS begins to unravel.

Adding further complexity is the inconsistent state practice on this matter. The Netherlands for instance has built artificial islands for flood control and urban expansion in the North Sea without asserting any special legal status for them. The United Arab Emirates has constructed the Palm Islands and The World archipelago, marketing them as luxury zones without pushing for additional EEZ claims. In contrast, China’s strategic artificial islands are explicitly linked to military and legal agendas. These differing state behaviors illustrate the lack of a common legal or normative understanding, which in turn undermines the universality and stability of UNCLOS provisions.

There is also a critical gap between legal regulation and environmental impact. Artificial islands often destroy coral reefs, alter tidal flows and disturb delicate marine ecosystems. Yet, environmental considerations are rarely integrated into the legal evaluation of these structures. The UNCLOS provisions on environmental protection (Part XII) apply broadly to marine pollution but lack specificity concerning artificial constructions. This lacuna allows states to justify ecologically destructive behavior under the guise of legal ambiguity, further reinforcing the perception that engineering can bypass both nature and law.

The lack of a cohesive legal framework has led to practical problems in navigation, conflict prevention and maritime delimitation. For example, when artificial islands are constructed near disputed borders, they often become flashpoints for military confrontation, as seen in the South China Sea, the East China Sea and even parts of the Eastern Mediterranean. Without clear legal rules the international community is left with a patchwork of bilateral protest notes, provisional arrangements, and ad hoc tribunal rulings, none of which establish enduring precedents or universal norms.

To address these challenges, some legal experts have proposed categorizing artificial islands into tiers based on criteria such as origin, function and permanence. A multi-layered legal classification system could offer nuanced rights without opening the floodgates to unlawful maritime claims. Others advocate for a new protocol under UNCLOS or even an entirely new treaty dedicated to “engineered territories.” Yet such proposals face significant political resistance, especially from states that benefit from the current ambiguity.

In sum, the current legal definition and status of artificial islands under UNCLOS are insufficient to meet the demands of modern statecraft. The Convention’s silence, inconsistencies and enforcement gaps have created a fertile ground for strategic manipulation, where physical realities are increasingly disconnected from legal frameworks. As artificial islands continue to proliferate not only for military purposes but also for climate resilience, tourism and resource extraction the need for a comprehensive legal re-examination becomes not only desirable but imperative. Without such reform the law of the sea risks drifting into irrelevance, left behind by the very waters it seeks to govern.

State Practice and Geopolitical Use of Artificial Islands

While the legal ambiguity surrounding artificial islands persists within the framework of international law, states have not hesitated to act decisively and divergently in response to strategic opportunity. The practice of building artificial islands far from being a uniform or environmentally neutral exercise, has evolved into a diplomatic signaling tool a projection of state capacity and a de facto challenge to the international order. In this chapter, we explore how states such as China, the United Arab Emirates, the Netherlands and others have leveraged artificial island construction for vastly different purposes, ranging from geostrategic dominance to economic development, from soft power imagery to hard power entrenchment. The legal indeterminacy of these actions has led to a patchwork of precedents, leaving the door open to confrontation, contestation and systemic fragmentation.

The most conspicuous and controversial example of artificial island strategy remains China’s large-scale land reclamation in the South China Sea. Beginning in earnest around 2013, China transformed a series of low-tide elevations and reefs such as Mischief Reef, Subi Reef and Fiery Cross Reef into sprawling military outposts complete with airstrips, deep harbors, radar installations, and anti aircraft systems. These artificial islands are not civilian settlements or commercial ventures; they are militarized projections of sovereignty, strategically located within the contested “nine dash line” that China unilaterally claims as its maritime domain. Despite the 2016 ruling by the Permanent Court of Arbitration, which invalidated many of China’s claims, Beijing has entrenched its presence on these engineered territories, effectively redrawing the regional power map through bulldozers rather than treaties.

China’s artificial islands serve multiple purposes simultaneously. They act as forward operating bases for its navy and air force, surveillance platforms for maritime domain awareness and physical markers of its claim to disputed waters. Perhaps most significantly, they are designed to reshape international norms by forcing other states to either challenge China militarily or accept the creeping normalization of construction based sovereignty. In this sense, artificial islands become tools of “strategic jurisprudence,” where de facto control seeks to generate de jure recognition over time. The longer these islands exist and operate unchallenged, the more they embed themselves in the normative landscape regardless of what the text of UNCLOS may stipulate.

In stark contrast to China’s militarized expansion, the United Arab Emirates (UAE) has embraced artificial island construction as a mechanism for soft power and economic diversification. The creation of the Palm Jumeirah, Palm Jebel Ali and The World archipelago has repositioned the UAE as a luxury tourism hub and a marvel of urban engineering. These islands do not claim territorial seas or maritime zones, nor are they tools of military assertion. Instead, they symbolize modernity, ambition, and a cosmopolitan vision of the Gulf’s future. Yet even this civilian use of artificial islands raises important legal and environmental questions, particularly around coastal impact, marine biodiversity destruction and long-term ecological sustainability.

What makes the UAE’s model geopolitically significant is its ability to harness engineering without provoking international backlash. By avoiding militarization and territorial rhetoric, the UAE has domesticated the practice of island building, transforming it into a neutralized, commercially digestible enterprise. This divergence from the Chinese model demonstrates that the purpose behind artificial islands not merely their existence, determines their legal and diplomatic implications. However, one should not underestimate the potential for this seemingly peaceful practice to evolve into a more strategic asset in the future, especially as maritime real estate becomes more valuable and regional rivalries intensify.

The Netherlands, with its long history of land reclamation and water management, offers yet another paradigm. Dutch artificial islands, such as IJburg in Amsterdam or the Maasvlakte extensions at Rotterdam Port, are primarily functional responses to spatial and economic needs. The Dutch legal system, and by extension European law does not seek to claim new maritime zones based on these extensions. However, the Netherlands does exemplify how advanced hydro-engineering can be institutionalized and normalized, potentially offering a blueprint for other states with similar environmental challenges, especially in the era of rising sea levels. The Dutch model is also a reminder that artificial island construction need not be destabilizing, provided it is carried out with transparency, environmental responsibility and respect for legal boundaries.

In the Maldives a more urgent logic prevails. Facing the existential threat of climate change, the government has embarked on the creation of artificial elevated islands such as Hulhumalé, designed to provide long-term housing and resilience for a population that may one day find its natural land underwater. This introduces a morally and legally complex dimension to the artificial island debate: when construction is used not to expand territory but to preserve statehood does it deserve different legal treatment? Can artificial islands be recognized as functional successors to submerged natural islands, thereby preserving maritime boundaries and EEZ entitlements in the face of ecological collapse?

This climate driven artificial island strategy, unlike those of China or the UAE forces international law to consider new normative imperatives: fairness, environmental justice and the right to state continuity. A blanket prohibition on artificial islands generating maritime zones may be justifiable in cases of territorial expansion, but becomes ethically questionable when applied to vulnerable island nations attempting to survive. The legal regime must therefore begin to differentiate between artificial islands constructed for aggression and those built for adaptation. This functional morality, however difficult to codify, may be essential to any future legal reform.

The United States, though not a builder of artificial islands in the conventional sense has responded to China’s actions by deploying Freedom of Navigation Operations (FONOPs) to challenge the legitimacy of artificial maritime claims. By sailing naval vessels near Chinese built islands without prior notification the U.S. aims to uphold the principle that artificial islands do not generate sovereignty or restrict passage. These actions, while legal under UNCLOS, introduce a new layer of military confrontation into the already fragile South China Sea context. The artificial island in this case, becomes a trigger point for kinetic diplomacy, where legal disagreement is expressed through maritime brinkmanship.

In the Eastern Mediterranean, Turkey’s hydrocarbon explorations and the positioning of research vessels near disputed zones, often protected by naval escorts, raise similar questions, even if artificial islands are not directly involved. The broader lesson is that artificial islands do not exist in isolation; they are entangled in a global web of maritime strategic competition, where the legal ambiguity surrounding them is both a symptom and a weapon of geopolitical tension.

What these varied examples demonstrate is that artificial islands have become multifunctional instruments of modern statecraft. They are used for military advantage, economic development, environmental resilience and legal signaling. The absence of a unified legal framework has allowed states to shape the practice in their own image, thereby fracturing the universality of maritime law. Whether through silent tourism or loud militarization, artificial islands reflect a reconfiguration of spatial politics, where the ocean is no longer a passive expanse but a canvas for engineered sovereignty.

In conclusion, state practice regarding artificial islands is far from homogenous. While some states treat them as national showcases, others treat them as strategic bulwarks. This divergence reveals a deeper truth: in the twenty-first century, the construction of artificial islands is not merely about controlling space but about rewriting the legal meaning of space itself. As more states gain the technological capacity to build in the sea, the international community must urgently decide: will it regulate the future of engineered territory, or will it allow the most powerful builders to define that future by default?

Strategic Militarization and Legal Grey Zones

The militarization of artificial islands represents one of the most consequential and destabilizing developments in contemporary maritime affairs. While artificial islands may begin as civilian or economic projects, their latent potential for military transformation renders them highly strategic assets. The repurposing of these engineered structures into armed outposts not only intensifies regional rivalries but also exposes critical gaps in the international legal framework. Despite the textual clarity of UNCLOS regarding the status of artificial islands, the convention remains largely silent on the military use of such constructions, inadvertently giving rise to a legal grey zone where national ambition outpaces international regulation.

This grey zone is most vividly illustrated in the South China Sea, where China’s artificial islands have undergone a visible and deliberate militarization trajectory. Initially framed as facilities for civilian purposes, such as weather monitoring, search and rescue or marine research, structures on reefs like Fiery Cross and Subi have been rapidly converted into fully operational military bases, complete with airstrips, radar systems, hangars and missile deployments. China maintains that these islands lie within its sovereign territory and that it has the right to “defend” them accordingly. However, under international law, such assertions are deeply problematic not least because many of these features were originally low-tide elevations with no inherent capacity to generate maritime entitlements.

The transformation of artificial islands into militarized zones presents three interrelated legal challenges. First, it undermines the non-aggression principle enshrined in the United Nations Charter. By converting civilian structures into armed platforms in contested waters, states risk provoking conflict under the pretext of self defense. Second, it violates the spirit of peaceful use of the seas a fundamental principle of UNCLOS. Third and most importantly, it distorts the legal character of the artificial island itself, granting it de facto legal consequences that UNCLOS explicitly denies namely, the projection of force and the assertion of territorial control.

The ambiguity stems in part from the functional silence of UNCLOS on the purpose of artificial islands. While Article 60 restricts their legal entitlements, it does not prohibit militarization. Nor does it clearly delineate the legal responsibilities of the constructing state when artificial islands are located in disputed or international waters. This absence has allowed powerful states to adopt a “construct first, legalize later” approach, where facts on the sea are engineered and international law is left to catch up or capitulate.

In response to China’s militarization, the United States and its allies have increasingly relied on Freedom of Navigation Operations (FONOPs) to contest any implied claims of sovereignty or exclusion zones around artificial islands. These naval operations, while legal under UNCLOS, represent a form of military diplomacy that itself inhabits a legal and political grey zone. By navigating within 12 nautical miles of militarized reefs, U.S. warships signal their non-recognition of the island’s legal status. However, these actions also risk escalation and misunderstanding, particularly given the absence of any binding enforcement mechanism for UNCLOS decisions. Thus, the very presence of militarized artificial islands becomes a catalyst for brinkmanship between great powers.

Other nations have begun to follow suit. In the Bay of Bengal, both India and Bangladesh have explored artificial island construction near sensitive maritime boundaries. In the Eastern Mediterranean, the strategic use of mobile maritime platforms and temporary installations raises similar questions about the blurred lines between engineering, defense and sovereignty. While these cases may not yet involve full militarization, they reflect a global normalization of infrastructure-as-power a doctrine wherein concrete is weaponized and sovereignty is physically constructed in lieu of legal consensus.

Moreover, militarized artificial islands complicate traditional distinctions between offensive and defensive posture. Because these islands are fixed, permanent and typically located far from a nation’s mainland, their militarization often conveys an offensive intent, even if officially framed as defensive. This creates a persistent ambiguity in the interpretation of the jus ad bellum, the legal doctrine governing the legitimate use of force. Can a state invoke Article 51 of the UN Charter to defend an artificial island it built in contested waters? Does the deployment of missile systems on such a structure constitute an “armed attack” against a neighboring state? The absence of clear jurisprudence leaves these questions unresolved, heightening the risk of miscalculation and conflict.

Furthermore, artificial islands introduce novel challenges to Rules of Engagement (ROE) and Laws of Armed Conflict (LOAC). For example, do such structures qualify as military objectives under international humanitarian law? Can they be lawfully targeted during armed conflict and if so, under what conditions? The blending of civilian infrastructure with military hardware further complicates the issue, raising the specter of dual use structures that defy easy legal categorization. This hybridization of form and function mirrors broader trends in modern warfare, cyber operations, proxy forces and economic coercion where legal ambiguity becomes a strategic asset.

The role of satellite surveillance and maritime intelligence in the detection of artificial island militarization also adds a technological layer to the legal discussion. Remote sensing can now track dredging activity, runway construction and military deployments in near real time. However, international law has yet to catch up with these capabilities. There is currently no binding obligation for states to disclose the military use of artificial islands, nor any mechanism to verify or contest such use in a neutral forum. This enables plausible deniability, whereby states can delay or obscure their militarization efforts while continuing to entrench physical control.

The potential for militarized artificial islands to serve as permanent offshore forward operating bases challenges the very foundations of maritime balance. Unlike traditional naval power projection, which relies on mobile fleets and temporary deployments, these engineered platforms provide a fixed, defensible and often self-sustaining presence within or near contested waters. Their permanence transforms the fluidity of the sea into a fixed geopolitical constant, upending centuries of naval strategy and diplomacy.

In this context, artificial islands also become tools of “lawfare” the strategic use of legal ambiguity to achieve military and political goals. By constructing artificial islands in grey zones and then invoking ambiguous legal doctrines to justify their existence and use, states are not only exploiting legal gaps but actively shaping new norms through strategic norm violation. Over time, such actions risk solidifying new customary practices that erode the integrity of UNCLOS and international law more broadly.

Ultimately, the militarization of artificial islands presents a structural dilemma for international law. On one hand, imposing hard legal constraints on construction or militarization may infringe on sovereign engineering rights and provoke backlash from powerful states. On the other hand, allowing the status quo to persist invites a future where military bases are built wherever concrete can be poured and where the law of the sea is dictated not by principles but by dredging capacity. The law must therefore evolve not to criminalize artificial islands per se, but to regulate their military transformation in a manner consistent with peace, equity and environmental sustainability.

Climate Change and the Future of Maritime Boundaries

As the climate crisis accelerates and sea levels continue to rise, the foundational premises of international maritime law are being eroded, both literally and legally. The stability of maritime boundaries, once considered immutable following delimitation agreements or tribunal rulings, now faces unprecedented uncertainty. In this emerging reality, artificial islands are increasingly seen not only as strategic assets but as potential lifelines for states whose natural territory is vanishing beneath the ocean. This chapter explores how climate change is reshaping the legal concept of territory at sea and examines whether artificial islands can serve as tools for preserving sovereignty, identity and maritime entitlements in a submerged future.

Small island developing states (SIDS) such as Tuvalu, Kiribati, the Marshall Islands and the Maldives are on the frontlines of climate induced existential threat. For these nations, rising seas are not a distant concern, they are an active, destructive force that threatens to erase their physical territory, displace their populations, and render them stateless. Under current interpretations of UNCLOS and general international law the loss of natural land area can jeopardize not only a state’s land-based sovereignty but also its maritime claims, including Exclusive Economic Zones (EEZs) and continental shelves. As legal scholars and diplomats grapple with this problem, artificial islands emerge as a radical yet plausible solution: can states “engineer their survival” by creating artificial land to replace what nature is taking away?

At present, UNCLOS does not recognize artificial islands as valid bases for generating EEZs or continental shelves. Article 60 specifically states that artificial islands “do not possess the status of islands” and thus cannot influence maritime boundaries. However, this provision was drafted long before climate change became a central concern in international relations. It was also not designed with the moral imperative of state continuity in mind. If a nation builds an artificial platform on top of a submerged island, should its preexisting maritime claims be extinguished simply because the new structure is man-made? The legal system’s inability to answer this question reveals a conceptual rigidity that may soon become ethically indefensible.

Several proposals have emerged to address this lacuna. One school of thought advocates for a “freezing” of maritime boundaries, whereby a state’s EEZ and continental shelf would remain legally valid even if its baselines recede or disappear due to rising seas. This would require a normative shift in the interpretation of UNCLOS and potentially a new protocol or declaration endorsed by the international community. The logic behind this approach is both pragmatic and equitable: climate change is not the fault of island states, and they should not be penalized for a loss of territory over which they had no control. However, even if this legal fiction is adopted, the question remains: what becomes of the land itself, and how is statehood maintained in the absence of physical territory?

This is where artificial islands and floating platforms enter the debate not as tools of expansion, but as mechanisms of preservation. Projects like Maldives’ Hulhumalé and Kiribati’s exploration of floating cities are driven by a singular goal: to anchor legal personality in engineered geography. These constructions aim not to extend jurisdiction but to sustain it. They present a powerful test case for the international legal system: will it evolve to protect the sovereign continuity of threatened nations or will it cling to geophysical definitions that exclude artificial solutions?

There is also a growing body of legal thought advocating for the recognition of “climate displaced states” and the adoption of criteria that go beyond territory such as population, government and international recognition to define statehood. In this paradigm, artificial islands could serve as symbolic and functional anchors for state legitimacy, even if natural territory is lost. This would require a reimagining of Article 1 of the Montevideo Convention, which lists “defined territory” as a condition for statehood. Could engineered land meet this requirement in a post climate world?

From a maritime perspective, the use of artificial islands to re-establish baselines introduces additional complexity. If such structures are built atop historically submerged or eroded land, can they be used to reclaim lost maritime zones? The answer depends in part on whether the international community accepts continuity through construction as a legitimate legal doctrine. If it does artificial islands could function not only as geographical placeholders but as legal anchors preserving past entitlements. If it does not displaced states may find themselves legally erased alongside their submerged homelands.

There is also the issue of equity and access to technology. Wealthier nations are more likely to possess the resources needed to build large-scale artificial structures. If artificial islands become accepted tools of state survival or maritime claim preservation, this could further widen the divide between Global North and Global South. To address this, any future legal regime must consider not only the legitimacy of artificial islands but also the global inequality of engineering capability and establish cooperative frameworks to ensure that vulnerable states are not left behind.

Importantly, artificial islands built for climate resilience raise fewer political objections than those constructed for military or economic dominance. Their defensive and humanitarian purpose aligns more closely with the spirit of international law and may attract broader acceptance in diplomatic forums. In this context, artificial islands transition from being seen as tools of territorial ambition to instruments of climate justice and this shift in perception could facilitate their legal recognition over time.

The environmental implications of such constructions, however, cannot be ignored. While artificial islands may offer refuge, they can also disrupt marine ecosystems, alter tidal patterns and contribute to habitat loss. Thus, any legal framework that allows for their use must be accompanied by strict environmental governance mechanisms, including impact assessments, sustainability benchmarks and regional cooperation bodies. This dual focus on survival and stewardship is essential to prevent climate adaptation from becoming a new form of ecological exploitation.

In conclusion, climate change is not only redrawing coastlines, it is redrawing the legal assumptions that underlie sovereignty at sea. Artificial islands, once viewed primarily as strategic anomalies, may become central to the survival of entire nations. The international legal system must rise to this challenge by recognizing that sovereignty like territory can now be engineered. The future of maritime boundaries will depend not only on where the land once was but on how and why it is rebuilt.

Normative Gap and Legal Proposals

Throughout this thesis, we have examined the multiple dimensions in which artificial islands challenge existing maritime legal frameworks particularly those established under UNCLOS. From militarization and geopolitical expansion to climate resilience and technological sovereignty, artificial islands embody the paradox of 21th century territory: physically manufactured legally ambiguous and politically charged. Yet the most significant consequence of their emergence is not simply the proliferation of engineered land at sea, it is the exposure of a normative vacuum in international law. This final chapter confronts that vacuum directly and offers a series of legal and institutional proposals to address the current doctrinal insufficiencies and preempt future crises.

The first and most urgent gap lies in the lack of precise legal definitions. At present, UNCLOS provides no formal definition of “artificial island” beyond functional references in Article 60. This absence creates confusion in treaty interpretation, state practice and dispute resolution. To correct this, international law must adopt a tiered definitional framework that distinguishes between various types of artificial maritime constructions. For instance the following typology could serve as a legal starting point:

Artificial Platforms: Non-habitable structures used for industrial or military purposes (e.g., oil rigs).

Engineered Islands: Permanently constructed, land like formations capable of human habitation.

Climate-Adaptive Floating Territories: Movable or semi fixed structures built for survival not sovereignty.

Military Installations at Sea: Armed platforms with offensive or defensive capabilities.

Such a classification system would enable a more nuanced application of maritime law, allowing specific rights and restrictions to be tailored to the nature and intent of the structure. Without this granularity, legal interpretations remain overly binary recognizing only “islands” or “non-islands” and fail to accommodate the reality of hybrid structures that increasingly populate strategic waters.

Secondly, the international community must address the issue of constructive jurisdiction that is, the legal authority exercised by a state over an artificial island. At present, there is no standardized framework for evaluating whether such jurisdiction is lawful, excessive or destabilizing. To this end, I propose a new three part test for determining the legitimacy of artificial island sovereignty claims:

Origin Legitimacy: Was the artificial island constructed in accordance with international environmental, navigational and regional legal obligations?

Functional Transparency: Is the stated purpose (civilian, military, adaptive) consistent with the declared use and observable infrastructure?

Proportional Projection: Does the scope of legal or military authority claimed from the structure exceed what is reasonable given its location and nature?

This tripartite test could be incorporated into a Model Code on Engineered Maritime Structures, endorsed through soft law mechanisms by bodies such as the International Maritime Organization (IMO) or the International Law Commission (ILC). It would not immediately alter treaty law but would provide a shared normative benchmark, encouraging compliance through reputation, diplomacy and peer pressure.

Thirdly, I propose the adoption of an Artificial Island Protocol under UNCLOS a formal amendment or annex designed to specifically regulate the legal status, rights and obligations associated with engineered territory at sea. This protocol could include provisions on:

Baseline rights: Circumstances under which artificial islands may maintain existing maritime entitlements of submerged land.

Environmental obligations: Mandatory impact assessments and long term sustainability requirements.

Notification and registry: Obligations to declare new constructions to a centralized international body.

Non militarization clause: Restrictions on the deployment of offensive weapons on artificial islands in disputed waters.

Human rights guarantees: Minimum standards for habitable artificial structures used for permanent residency or climate relocation.

The protocol should also empower a Maritime Legal Review Mechanism a semi permanent panel of legal experts and maritime scientists charged with evaluating the legitimacy and impact of artificial islands. This body could issue advisory opinions, review state conduct, and recommend normative adaptations in response to emerging challenges.

Fourth and perhaps most radically, international law must reconsider the relationship between territory and sovereignty in the age of engineered geography. The classical view that sovereignty is rooted in natural geography is increasingly obsolete. A new theory of Engineered Sovereignty must be articulated: one in which sovereignty is understood as a set of relational functions (authority, governance, identity) that can be preserved through constructed space. This theory would not unconditionally recognize all artificial constructions as sovereign territory but it would allow for case-specific recognition when structures fulfill the functional and normative roles of a state’s territorial core particularly in the context of climate displacement or persistent state continuity.

Such a reconceptualization would necessitate a re-examination of the Montevideo Criteria for Statehood, particularly the requirement of defined territory. In a world of submerging archipelagos and rising ocean platforms, “defined territory” may need to be interpreted functionally, not geophysically. Artificial islands could serve as “successor surfaces” for submerged statehood, legal surrogates for physical space that preserve not only legal personality but also collective memory and international identity.

Finally, the future of artificial islands must be regulated through multi-level governance. No single institution UNCLOS, IMO, WTO or the UN Security Council can resolve the complex interplay between engineering, environment, geopolitics and law. A hybrid governance framework is needed, involving:

•Regional maritime consortia (e.g., ASEAN, African Union coastal bodies)

•Technical environmental commissions

•Military transparency regimes

•Global legal innovation labs, tasked with real time rule development for emerging challenges

The goal is not to paralyze innovation but to channel it into predictable, equitable and peaceful outcomes. Artificial islands are here to stay. The question is whether they will be instruments of conflict or be transformed into pillars of a new legal order at sea.

✅ Final Reflections

This chapter marks a shift from observation to architecture from identifying gaps to filling them with enforceable norms. The rise of artificial islands is not just a challenge to international law; it is an invitation to reimagine its possibilities. If the law of the sea is to remain relevant in the 21th century, it must evolve to regulate sovereignty not just on where the land was but on what we are now capable of building in its place.

Engineering Sovereignty in the Age of Liquid Boundaries

The twenty-first century is witnessing a profound transformation in the grammar of sovereignty. No longer confined to inherited landforms or ancient maps, the authority of the state is now increasingly poured, assembled and anchored into the sea. Artificial islands are not merely structures, they are acts of geopolitical authorship, projecting statehood into maritime voids and testing the elasticity of the international legal order. In their construction lies not only concrete but also legal ambition, strategic signaling and a quiet revolution in the architecture of global power.

This thesis has undertaken a comprehensive journey through the evolving legal, political, environmental and philosophical dimensions of artificial islands. We have seen how UNCLOS, though remarkably visionary for its time, was not built to absorb the realities of engineered territory, military fortification, climate-induced disappearance or the legal survival of states without land. Through five chapters, we traced the breakdown of binary legal categories natural/artificial, land/sea, sovereign/void and proposed a new spectrum of normative recognition that reflects both functional complexity and moral necessity.

Chapter 1 revealed that artificial islands lack coherent legal status under UNCLOS, remaining suspended between regulatory categories. Chapter 2 demonstrated that state practice is diverging rapidly, with China, the UAE, the Netherlands and climate vulnerable nations pursuing vastly different models of artificial island use from military projection to luxury development to national survival. Chapter 3 exposed the weaponization of legal ambiguity, where militarized islands operate as territorial extensions and risk destabilizing maritime peace. Chapter 4 interrogated the existential threat of climate change and posed the radical question: can sovereignty be preserved through construction, even when natural territory sinks? And finally, Chapter 5 proposed legal innovations and governance frameworks to fill the current normative void, including definitional regimes, legitimacy tests and a reimagination of statehood in the post geographic age.

At the heart of this inquiry lies a single disruptive insight: territory is no longer a gift of geology, it is a choice of engineering. The implications are far reaching. If land can be constructed and law can follow it, then sovereignty is no longer constrained by the coastline but is limited only by a state’s ambition, technology and legal creativity. This opens the door to both opportunity and danger: opportunity for climate vulnerable states to survive and adapt, danger from revisionist powers seeking to engineer conquest under a legal vacuum.

The stakes are immense. If the international community fails to regulate the legal future of artificial islands, we may soon witness the fragmentation of maritime order as rival interpretations and unilateral practices proliferate. In contrast, if the law evolves wisely embracing engineered territory within a structured legal paradigm, then artificial islands may become sites not of conflict but of continuity, adaptation and shared governance. To achieve this, we must abandon outdated binaries and recognize that sovereignty, like the sea itself, is becoming a fluid construct one that must be shaped with foresight, equity and legal courage.

In conclusion, artificial islands are not anomalies. They are prototypes of the next geopolitical epoch. They are not marginal cases, they are central battlegrounds in the fight to define the future of territory, law and the state itself. It is time for international law to stop reacting to what has been built and begin designing what should be recognized.

We are entering the age of Engineered Sovereignty. And the legal sea map will never be the same again.

ABSTRACT

The Legal Future of Artificial Islands: Redrawing Sovereignty at Sea in the Age of Engineered Territory

This thesis explores the profound legal, strategic and normative implications of artificial islands in international maritime law with a particular focus on how engineered territory is reshaping traditional understandings of sovereignty at sea. Amidst accelerating geopolitical competition and climate change induced territorial loss, the emergence of artificial islands has revealed a critical normative gap within the United Nations Convention on the Law of the Sea (UNCLOS), which fails to adequately regulate their construction, militarization or role in state continuity.

Through five comprehensive chapters, this study undertakes a multidisciplinary investigation into the legal definition, state practice, militarized use, climate driven necessity and normative regulation of artificial islands. Drawing on doctrinal analysis, case studies and normative theory, the research identifies artificial islands as a central challenge to existing maritime boundaries and legal interpretations of statehood, territory and jurisdiction.

The findings suggest that artificial islands are no longer anomalies but are becoming foundational elements in the 21th century’s evolving geopolitical architecture. In response, this thesis proposes a new legal doctrine of Engineered Sovereignty, which reimagines sovereignty as a function not of inherited geography but of constructed legitimacy. To address the regulatory vacuum, the study offers concrete legal innovations, including: a functional typology of artificial structures; a three-part legitimacy test for jurisdictional claims; and the outline of a proposed Artificial Island Protocol under UNCLOS.

Ultimately, the thesis argues that if international law is to remain relevant in an era of rising seas, artificial territories and hybrid geostrategic constructs, it must expand beyond static definitions and embrace a more dynamic and adaptive legal framework one capable of governing sovereignty not only where land ends but where it is now being built.

Where Land Ends and Law Begins Again: The Rise of Engineered Sovereignty at Sea