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

Author’s Note: This piece originated as a policy paper for a nuclear security course. It received an A- alongside a notable professor critique: “A bold and interesting op-ed… dangerous ideas notwithstanding.” It is presented here as a structured thought experiment, an effort to push realist deterrence theory to its logical limit to expose why the current arms-control architecture continues to fail.

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 Kenneth Waltz’s deterrence logic and Scott 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 three most serious objections to this position: Sagan’s organizational model of accident risk, the threat of fissile material diversion to non-state proxies, 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 analysis of why states build nuclear weapons identifies three drivers: security concerns, domestic political pressures, and normative-symbolic considerations. 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.

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. 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.” 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 Preventive Strike Hazard

A valid critique of this framework is the acute instability generated during the transition phase. As a non-nuclear state moves toward an operational deterrent, its regional rivals face a window of vulnerability, creating a strong structural incentive for pre-emptive conventional or nuclear strikes (historically demonstrated by Israel’s strikes on Osirak in 1981 and Al-Kibar in 2007).

To prevent transition-era warfare, a universal regime would require multi-lateral security umbrellas and IAEA enforcement guarantees during a state’s “onboarding” period, preventing adversaries from exploiting the temporary asymmetry.

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.

Historical Case Studies in Deterrence

Case 1: Ukraine (1994) Security Strategy: Surrendered Soviet-era nuclear arsenals in exchange for Budapest Memorandum paper guarantees from major powers. Outcome: Security assurances failed completely; Ukraine was invaded by Russia in 2014 and 2022.

Case 2: North Korea (2000s to present) Security Strategy: Acquired an indigenous, functional nuclear deterrent despite extreme international sanctions. Outcome: Successfully deterred Western-led regime-change interventions that targeted non-nuclear peers (Iraq and Libya, for instance).

The case of Ukraine is instructive. 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. 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 paper security assurances do not substitute for material deterrence.

IV. Organizational Risk and the Proxy Loophole

The most serious scholarly objection to Waltz’s deterrence optimism comes from Sagan’s organizational model. 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.

Sagan’s most important empirical contribution is the documentation of historical near-misses:

• 1979 (NORAD Computer Error): A training tape simulating a full Soviet attack was mistakenly loaded into live NORAD systems, generating launch alerts across strategic command.
• 1983 (Petrov Incident): Soviet officer Stanislav Petrov correctly identified a satellite alarm as a false signal, overruling automated launch protocols.
• 1995 (Black Brant Rocket): A Norwegian scientific rocket triggered Russian early-warning radar, resulting in the activation of the Cheget nuclear briefcase for the only confirmed time in post-Soviet history.

These were close calls caused by the ordinary failure modes of large organizations under time pressure. If the nuclear club expands from nine states to ninety, the number of organizational systems that must function flawlessly increases exponentially.

Addressing Structural Proliferation Risks

• Risk 1: Organizational and Command Accidents (Sagan Model). Institutional Solution: Mandatory universal sharing of early-warning systems, Permissive Action Links (PALs), and IAEA-certified fail-safe protocols.
• Risk 2: Covert Transfers to Non-State Proxies and Terrorists. Institutional Solution: Universal isotopic nuclear forensics combined with strict, non-negotiable state liability for all fissile material.
• Risk 3: Pre-emptive Regional Strikes During Transition. Institutional Solution: Multi-lateral international security guarantees and IAEA umbrellas during a state’s onboarding phase.

The Non-State Actor and Proxy Vector

In addition to internal accidents, universal diffusion creates a critical proxy vulnerability: the risk that a state might covertly transfer fissile material to non-state actors or terrorist networks to execute unattributable strikes.

To counteract this, a Universal Proliferation Treaty must institute absolute, non-negotiable strict-liability frameworks. Every warhead and nuclear fuel component must carry unique nuclear forensic signatures. Under this protocol, any detonation or dirty bomb traced back to a sovereign state’s enriched material would trigger immediate, collective military retaliation against that host state, removing any illusion of proxy anonymity.

The answer to these vulnerabilities runs through institutional infrastructure. The NPT regime has perversely ensured that non-nuclear states were denied access to the safety and command-and-control technologies developed by major powers over decades of expensive trial and error. Under a universal regime, safety infrastructure becomes a mandatory precondition. No state receives formal recognition of its nuclear status without demonstrating certified command-and-control systems, secure storage, and verified civilian oversight.

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. Under universal proliferation, this enforcement structure collapses: if every state has nuclear capability, why would states comply with international oversight when coercive power has been equalized away?

This is the defection problem. Under the current regime, a state that defects from oversight creates an asymmetry it can exploit. Under universal proliferation, however, a state that defects cannot exploit that defection without threatening every other state simultaneously.

The retaliatory threat is no longer held by one or two global powers; it is held by the entire international system. The incentive to defect shrinks because the benefit of defection, asymmetric dominance, no longer exists.

Research by Nina Tannenwald on the nuclear taboo supports this analysis. 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 would amplify the normative weight behind the taboo, making every state a direct stakeholder in its enforcement.

VI. Policy Recommendations for a Universal Order

The institutional architecture required to make universal proliferation work requires deliberate construction across five core policies:

1. Replace the NPT with a Universal Proliferation Treaty (UPT): Replace the discriminatory two-tier system with universal obligations and universal rights, specifying IAEA certification as the condition for recognized deterrence status.
2. Expand and Empower the IAEA: Broaden the IAEA’s mandate from civilian verification to comprehensive oversight of military safety: unannounced command inspections, security certification, and isotopic nuclear forensic tracking.
3. Establish Standardized Command-and-Control Protocols: Mandate international safety standards, fail-safe locks (Permissive Action Links), and fail-safe communications lines across all participating militaries.
4. Enforce Mutual Assured Transparency: Enact mandatory public declarations of inventories, delivery systems, and alert statuses, treating secret build-ups with immediate collective sanctions.
5. Incentivize Civilian Nuclear Interdependence: Expand assistance for low-carbon civilian nuclear energy. As Adam Smith argued regarding commerce, deep economic and technological interdependence creates material stakes in maintaining regional stability.

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 powers holding disproportionate leverage, a non-nuclear majority living under conditional sovereignty, and an arms-control framework that has failed for fifty years.

Making nuclear capability universal equalizes the geopolitical field. Every state faces the same cost of aggression. Distributed deterrence replaces concentrated vulnerability, building a global security system resting on the equal stake of all participants rather than the selective restraint of a few.

Sources

1. Sagan, Scott D. The Limits of Safety: Organizations, Accidents, and Nuclear Weapons. Princeton University Press, 1993.
2. Waltz, Kenneth N. The Spread of Nuclear Weapons: More May Be Better. Adelphi Papers, no. 171, International Institute for Strategic Studies, 1981.
3. Schelling, Thomas C. The Strategy of Conflict. Harvard University Press, 1960.
4. Budjeryn, Mariana. Inheriting the Bomb: The Collapse of the USSR and the Nuclear Disarmament of Ukraine. Johns Hopkins University Press, 2022.
5. Tannenwald, Nina. The Nuclear Taboo: The United States and the Non-Use of Nuclear Weapons Since 1945. Cambridge University Press, 2007.
6. Mearsheimer, John J. The Tragedy of Great Power Politics. W.W. Norton, 2001.

This essay is also published on Substack: https://sanadalrashidi.substack.com/p/a-world-made-equal-universal-nuclear and on X: https://x.com/sanadAlrashidi/status/2084799993378918760