A World Made Equal: Universal Nuclear Proliferation as Security Paradoxالسلاح النووي للجميع: مفارقة الأمن في انتشار السلاح النووي

Abstract

For decades, the international community has pursued universal nuclear disarmament as the primary route to global security. This paper argues that the approach has failed on its own terms and that the failure is structural rather than contingent. Drawing on realist international relations theory, specifically Waltz’s deterrence logic and Sagan’s models of nuclear acquisition, the paper develops a structured argument for universal nuclear proliferation under rigorous international oversight as a more durable alternative. The claim is not that proliferation is desirable in itself. The claim is that a universal regime aligns governance with the actual psychology of states rather than demanding that states transcend that psychology. The paper addresses the two most serious objections to this position: Sagan’s organizational model of accident risk, and the game-theoretic problem of oversight defection under a universal regime. It concludes with five policy recommendations for converting a world of universal capability into a world of strengthened accountability.

I. The Failure of the Disarmament Consensus

This paper is a structured argument, not an advocacy position. It takes the central premise of deterrence theory seriously and follows it to its limit, because the limit case exposes what the conventional non-proliferation consensus must assume in order to hold. If the argument is wrong, it is wrong in ways that clarify why the current regime fails. If it is right, the implications are larger than the nuclear question itself.

For over half a century, the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and subsequent arms-control frameworks have aimed to curb the spread of nuclear arms and eventually achieve universal disarmament. These efforts have largely failed to reach the promised land.

The NPT’s fundamental bargain, in which nuclear weapon states gradually disarm while non-nuclear states forgo weapons in exchange for access to peaceful nuclear technology, remains unfulfilled on both sides. Nuclear powers have modernized rather than retired their arsenals. Rising powers have questioned the order. States outside the NPT regime have nuclearized successfully. And the non-nuclear majority that complied with the bargain has received neither the promised disarmament nor, in many cases, the promised access to peaceful applications. The pattern is familiar from institutional analysis: a system that rewards compliance more than contribution. Non-nuclear states played by the rules. The rules did not deliver.

Realist theory offers an explanation for why this was predictable. Kenneth Waltz argued that states act primarily in their own self-interest, defined in terms of power and security, in an anarchic international system where no authority can enforce agreements from above. Scott Sagan’s foundational 1996 analysis of why states build nuclear weapons identifies three drivers: security concerns, domestic political pressures, and normative-symbolic considerations.[1] All three resist the logic of voluntary disarmament. A state facing a nuclear-armed adversary does not calculate “the others will follow my example.” It calculates “the others might not, and if they do not, I am exposed.”

Rather than striving for a world in which states transcend these fears, the more practical question is whether there exists an institutional architecture that works with state psychology rather than against it. Institutions that demand actors behave against their structural incentives do not reform those actors. They generate hypocrisy, evasion, and eventually open defection.

The persistence of disarmament failure is also, in part, a discourse failure. The language of “nuclear zero” cannot survive contact with the structural incentives of sovereign states in an anarchic system. The vocabulary of disarmament was always more useful for domestic political signaling, for demonstrating moral seriousness, than for changing state behavior. When the gap between the discourse and the reality grows large enough, the discourse stops functioning even as signaling.

II. The Case for Universal Proliferation

The argument here is a reframe: if disarmament cannot be achieved, the next best outcome may be universalization. Universal nuclear proliferation, accompanied by rigorous international oversight, strict safety standards, and transparent regulatory frameworks, could paradoxically reduce incentives for aggression while strengthening the institutional architecture that currently exists only to manage a small number of nuclear powers.

The logic of nuclear deterrence, born in the Cold War, holds that mutual vulnerability prevents nuclear-armed states from engaging in large-scale wars. Thomas Schelling formalized the insight: the power to hurt, held in reserve and made credible, restructures the bargaining environment between adversaries more reliably than the power to win.[2] The fear of mutual assured destruction prevented the United States and the Soviet Union from allowing their rivalries to descend into direct nuclear conflict for four decades. The logic has operated asymmetrically since: weaker states facing nuclear-armed adversaries have repeatedly sought their own deterrents to avoid coercion or invasion. Nuclear weapons create a balance of terror that has historically helped maintain peace between the states that possess them.

Waltz famously argued that “the gradual spread of nuclear weapons is better than either no spread or rapid spread.”[3] As more states acquire nuclear weapons, he reasoned, the likelihood of large-scale war decreases, because every nuclear-armed state becomes more cautious. If a state like North Korea has found a degree of security and autonomy through nuclearization, deterring a regime-change intervention that would otherwise have been feasible, the question this paper poses is direct: what happens when this logic is applied universally?

Granting all states equal access to nuclear capability eliminates the current power imbalance in which a handful of nuclear states wield disproportionate coercive leverage over the non-nuclear majority. The nuclear divide is not simply a difference in capability. It is the point at which functional difference hardens into permanent hierarchical rank. Nuclear haves and have-nots occupy different positions in a hierarchy of sovereignty, where the security of non-nuclear states is permanently conditional on the restraint of nuclear ones. With universal proliferation comes a grim equality: if every state can retaliate with nuclear force, no state can rationally use it first.

The freedom of non-nuclear states has always been conditional rather than real. It depends on the good behavior of powers they cannot constrain. That is not a stable foundation for a legitimate international order.

Beyond security, universal proliferation under strict supervision could encourage the diffusion of peaceful nuclear technology. As all states invest in nuclear capacity, innovations in nuclear energy, including safer reactors, improved waste management, and more efficient fuel cycles, would spread more evenly. States would have the resources and incentives to develop domestic peaceful nuclear industries rather than relying on a few dominant suppliers. This could accelerate the global transition to low-carbon energy, for which nuclear power remains the most immediately scalable tool. The current nuclear order is structured around maintaining the privileges of an incumbent nuclear club, not around creating a broadly accessible civilian nuclear economy. Those are different institutional projects, and the second has never seriously been attempted.

III. Historical Precedents

History offers tentative support for the deterrence claim. During the Cold War, the United States and the Soviet Union came perilously close to nuclear war on several occasions, most famously during the Cuban Missile Crisis of 1962. And yet they consistently pulled back from the brink. The fear of mutual annihilation was powerful enough to produce caution and, eventually, arms-control agreements. If two bitterly opposed superpowers managed to refrain from nuclear use for four decades, a globally distributed deterrent architecture might create an even more stable equilibrium by removing the asymmetry that generates the most dangerous instabilities.

Consider Ukraine. Ukraine gave up the nuclear weapons it inherited from the Soviet Union under the 1994 Budapest Memorandum, receiving security assurances from the United States, the United Kingdom, and Russia in exchange. When Russia annexed Crimea in 2014 and launched a full-scale invasion in 2022, those assurances proved worthless.[4] Ukraine’s vulnerability was direct and unambiguous: the state that gave up its deterrent found itself unable to prevent territorial dismemberment. The lesson states drew from this case, and drew correctly under realist logic, was that security assurances do not substitute for material deterrence.

The case of North Korea cuts the opposite way. Its limited nuclear arsenal has deterred major-power intervention aimed at regime change, however ugly the regime. The deterrent works. Under universal proliferation logic, what is currently an exception would become the structural condition: all states equally secure against military coercion, and equally constrained from exercising it.

IV. The Accident Problem and Sagan’s Organizational Model

The most serious scholarly objection to Waltz’s deterrence optimism comes from Sagan’s organizational model.[5] Sagan argues that states do not always behave as rational unitary actors. Real organizations, including military bureaucracies and nuclear command structures, have limited information-processing capacity, competing internal interests, standard operating procedures that adapt poorly to novel situations, and documented tendencies toward error under stress. The world was brought near catastrophe during the Cold War not only by rational calculation gone wrong but by equipment failures, misread radar signals, and organizational miscommunication.

Sagan’s most important empirical contribution is the documentation of near-misses. In 1979, a training tape simulating a full Soviet attack was mistakenly loaded into the live NORAD warning system, producing attack indications that reached strategic command before being identified as an exercise scenario.[5] In 1983, Soviet officer Stanislav Petrov correctly declined to report a satellite alarm that turned out to be a false launch signal. In the same year, the Able Archer 83 exercises were read by Soviet intelligence as possible preparation for a genuine first strike. The 1995 Black Brant scare extends the documentation into the post-Soviet period: a Norwegian-American scientific rocket launched to study the aurora borealis was misinterpreted by Russian early-warning radar as a possible Trident submarine launch, and the Russian command system activated the Cheget nuclear briefcase for the only confirmed time in the post-Soviet era before the trajectory was reidentified as a research mission.[6] These events were not close calls because of irrational leaders. They were close calls because of the ordinary failure modes of large organizations under time pressure: incomplete information, cross-system communication breakdowns, and the narrow window in which catastrophic decisions must be made. If the nuclear club expands from nine states to, say, ninety, the number of organizational systems that must function flawlessly to prevent catastrophic error increases by an order of magnitude.

Sagan’s argument is the most serious in the literature, but it is not the only realist position worth engaging. John Mearsheimer’s offensive realism sharpens the structural reasoning behind Waltz’s optimism and clarifies why states under genuine security threat will pursue nuclear capability whether or not the international system permits it.[7] Great powers and aspiring powers continuously seek to maximize relative power in an anarchic system, and nuclear weapons offer the highest available return on the security dimension of that pursuit. The implication for non-proliferation is direct: a regime built on the premise that states can be persuaded to forgo the highest-return security investment available is structurally unstable. The question Mearsheimer’s framework forces is not whether proliferation can be prevented in some idealized future. It is whether the institutional architecture is matched to the structural incentives that drive proliferation under any plausible international system. The current architecture is not.

The organizational objection must therefore be answered directly rather than dismissed, and the answer runs through institutions. The organizational model implies that universal proliferation would require something the current non-proliferation regime has explicitly withheld from the states it prevented from acquiring weapons: the institutional infrastructure for safe nuclear management. The NPT regime has, perversely, ensured that the states with the greatest interest in nuclear capability, precisely those that felt most insecure, were denied access to the safety and command-and-control knowledge that the recognized nuclear powers developed over decades of expensive accidents and near-misses. If universal proliferation creates accident risk, the answer is not a return to an asymmetric regime that has already failed. The answer is to build the institutional infrastructure that converts nuclear capability into safe nuclear stewardship globally.

The underlying design principle is that institutional architecture must adapt to the reality it faces rather than insisting on an ideal that cannot hold. The reality is that nuclear capability will continue to diffuse regardless of the NPT regime. The open question is whether that diffusion occurs in a context of strong international safety institutions or weak ones.

A universal proliferation regime would make safety infrastructure a precondition rather than an afterthought. No state would receive formal recognition of its nuclear status, including the deterrence credibility that flows from recognition, without demonstrating command-and-control systems, secure storage, accident-prevention protocols, and verified civilian oversight of military nuclear authority. The IAEA’s role would expand from verification of civilian use to certification of military safety standards as a condition of legitimacy. States with weak institutional capacity for safe nuclear management would have strong incentives to accept technical assistance and oversight in exchange for the legitimacy that comes with recognized deterrence status.

This addresses the organizational concern without returning to an asymmetric regime that has proved both ineffective and illegitimate.

V. The Oversight Defection Problem

A second serious objection is game-theoretic. The current non-proliferation regime is enforced by a small number of powerful states with a strong interest in preserving their nuclear advantages. Under universal proliferation, this enforcement structure collapses: if every state has nuclear capability, the threat of coercive enforcement by nuclear powers loses its asymmetric character. Why would states comply with IAEA oversight if the coercive power backing that oversight has been equalized away?

This is the defection problem. In a world of universal nuclear capability, the rational move for any individual state appears to be accepting the benefits of the collective oversight regime while quietly hedging on its obligations. If every state defects, the regime collapses.

The answer lies in the nature of the equilibrium that universal proliferation creates. Under the current regime, a nuclear power that defects from oversight creates an asymmetry it can exploit. Under universal proliferation, a state that defects from oversight, whether by developing secret capabilities beyond declared limits, violating safety standards, or diverting materials, cannot exploit that defection without threatening every other state simultaneously. The retaliatory threat is not held by one or two powerful states. It is held by the entire system. The defection incentive shrinks precisely because the benefit of defection, asymmetric advantage, no longer exists. What remains is manageable by collective enforcement backed by a universal stake in the outcome.

Nina Tannenwald’s research on the nuclear taboo supports this analysis.[8] The non-use norm has strengthened as nuclear weapons have diffused, not weakened. The normative weight against nuclear use is not a function of the small size of the nuclear club. It is a function of the universal interest in non-use. Universal proliferation, rather than destroying the taboo, would amplify the normative weight behind it: every state becomes a stakeholder in the taboo’s maintenance rather than a spectator to the decisions of nine.

VI. Policy Recommendations

The institutional architecture required to make universal proliferation work is demanding. It does not emerge automatically from capability diffusion. It requires deliberate construction. Five recommendations sketch the design.

1. Replace the NPT with a Universal Proliferation Treaty (UPT). The NPT’s non-proliferation bargain is structurally exhausted. A replacement treaty should codify the right of every state to possess nuclear capabilities under stringent international supervision, replacing the discriminatory two-tier structure with universal obligations and universal rights. The treaty should specify IAEA certification as the condition for recognized deterrence status.

2. Expand and empower the IAEA. The IAEA’s mandate should grow from verification of civilian nuclear use to comprehensive oversight of military nuclear safety: unannounced inspections, command-and-control certification, accident-prevention protocol standards, and civilian oversight verification.[9] IAEA authority should be backed by the collective deterrent force of all recognized nuclear states, so that any violation invites collective response rather than unilateral enforcement by a dominant power.

3. Establish universal safety and security protocols. All states would be required to adhere to standardized protocols for handling, maintaining, and securing nuclear weapons, covering command-and-control systems, communication lines, de-escalation measures, and accident-prevention standards. These protocols would be internationally agreed and reviewed on a fixed cycle, so that the rules adapt as technology changes rather than fossilizing. This answers the organizational model concern directly: safety infrastructure becomes a condition of legitimacy, not an optional enhancement.

4. Mutual assured transparency. Mandatory declarations of nuclear inventories, delivery systems, and alert statuses would create a culture of transparency. Deviations or secret build-ups would face immediate scrutiny backed by collective response. The analogy is to financial disclosure regimes: just as listed companies must report accurately to shareholders under threat of severe penalty, states would present honest nuclear data to the global community under threat of collective reprisal.

5. Incentivize peaceful uses. Technical and financial assistance for civilian nuclear energy, medicine, and research would accompany the expansion of military safety obligations. This builds nuclear expertise in a safe direction and ensures that as states gain nuclear capabilities, they also gain the economic and social benefits of peaceful applications. The resulting interdependence, through shared investment in nuclear supply chains, joint civilian projects, and cross-border safety infrastructure, creates material stakes in maintaining the stability of the universal deterrence equilibrium. As Adam Smith argued, commerce creates societies with reduced incentives to disrupt mutually beneficial arrangements.[10] Economic interdependence is a contextual pacifier rather than a universal guarantee, but in a regime already stabilized by symmetric deterrence, contextual is enough.

VII. A More Equal Nuclear Order

Universal proliferation may seem more dangerous than the current arrangement. It is not, once the current arrangement is honestly assessed: a small group of states holding disproportionate coercive leverage, a non-nuclear majority living under the shadow of that leverage, and an institutional regime that has spent fifty years failing to achieve its own stated goal.

Making nuclear capability universal equalizes the field. Every state faces the same immense cost of first use. In time, this equilibrium might lower the perceived utility of nuclear arms themselves, nudging states toward safeguard mechanisms and peaceful nuclear technologies as the primary expression of their nuclear investment. Distributed deterrence replaces concentrated vulnerability: a system whose stability rests on the unanimous stake of all participants rather than the restraint of a few.

This is not utopian. It does not require states to transcend their interest in security. It requires states to recognize that in a world of universal capability, the best guarantee of their own security is the stability of the collective regime, and that the best guarantee of the collective regime is transparency, safety standards, and the universal deterrent backstop that replaces the failed promise of disarmament. Whether any existing institution could survive the transition between the two equilibria is a question this paper has deliberately left open. The transition problem, not the end state, is where the next stage of this argument has to live.

Sources

1. Sagan, Scott D. “Why Do States Build Nuclear Weapons? Three Models in Search of a Bomb.” International Security, vol. 21, no. 3, Winter 1996/97, pp. 54-86.
2. Schelling, Thomas C. The Strategy of Conflict. Harvard University Press, 1960.
3. Waltz, Kenneth N. The Spread of Nuclear Weapons: More May Be Better. Adelphi Papers, no. 171, International Institute for Strategic Studies, 1981.
4. Budjeryn, Mariana. Inheriting the Bomb: The Collapse of the USSR and the Nuclear Disarmament of Ukraine. Johns Hopkins University Press, 2022.
5. Sagan, Scott D. The Limits of Safety: Organizations, Accidents, and Nuclear Weapons. Princeton University Press, 1993.
6. Hoffman, David E. The Dead Hand: The Untold Story of the Cold War Arms Race and Its Dangerous Legacy. Doubleday, 2009.
7. Mearsheimer, John J. The Tragedy of Great Power Politics. W.W. Norton, 2001.
8. Tannenwald, Nina. The Nuclear Taboo: The United States and the Non-Use of Nuclear Weapons Since 1945. Cambridge University Press, 2007.
9. International Atomic Energy Agency. “What We Do.” IAEA, www.iaea.org.
10. Smith, Adam. An Inquiry into the Nature and Causes of the Wealth of Nations. 1776.

Additional reference: Kristensen, Hans M., and Matt Korda. “Status of World Nuclear Forces.” Federation of American Scientists, fas.org.