We must trade disarmament dreams for pragmatic containment

For over half a century, the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) served as the central pillar of international security. Drafted during the height of the Cold War, its premise was straightforward: non-nuclear states promised not to acquire nuclear arms, nuclear-weapon states committed to disarmament, and all parties were granted access to peaceful nuclear technology. For decades, this arrangement contained the threat of global atomic devastation.

Today, however, the non-proliferation architecture faces unprecedented strain. Viewing total nuclear non-proliferation as an absolute goal reveals it to be an idealist vision, yet dismissing it entirely as a lost cause misinterprets its practical function. Non-proliferation remains a vital, achievable instrument of risk management—even as its complete enforcement grows increasingly elusive.

The arguments declaring non-proliferation a lost cause are compelling. The geopolitical landscape has shifted from bilateral arms-control agreements toward multipolar friction. Key bilateral guardrails have unravelled; arms control frameworks like New START have lapsed or seen participation suspended, leaving major powers without binding limits on strategic warheads.

Furthermore, regional rivalries have accelerated nuclear expansion. North Korea’s unchecked arsenal, Iran’s advanced uranium enrichment, and rapid modernization across existing nuclear-armed states signal that deterrence—rather than disarmament—has returned to centre stage.

Simultaneously, the central trade-off of the NPT is experiencing a crisis of legitimacy. Non-nuclear states increasingly regard the treaty as an unequal arrangement that legitimizes a permanent nuclear oligarchy while failing to deliver on promised disarmament. When nuclear-armed powers explicitly rely on their arsenals for geopolitical leverage, non-nuclear states face strong security incentives to consider their own deterrents.

Despite these grave challenges, labelling non-proliferation a total lost cause ignores the success of global diplomatic safeguards. Without the NPT and the monitoring capabilities of the International Atomic Energy Agency (IAEA), dozens of nations that possessed the technical capacity to build nuclear weapons—such as South Africa, Sweden, and Brazil—would likely have done so. The treaty established a global normative standard against proliferation that remains deeply entrenched.

Moreover, non-proliferation is not a binary switch between absolute abolition and chaos; it is a continuous containment effort. Achieving a world entirely free of nuclear weapons may be unrealistic in the short term, but preventing horizontal proliferation—the spread of nuclear weapons to additional states—remains achievable through rigorous IAEA safeguards, export controls, and diplomatic engagement.

To keep non-proliferation viable, the global framework must adapt to contemporary geopolitics. This requires moving beyond rigid Cold War formats toward broader, inclusive risk-reduction measures. Priority must shift to revitalizing multilateral dialogue, securing fissile materials, establishing crisis communication channels, and integrating emerging technologies like AI into verification regimes.

Ultimately, nuclear non-proliferation is neither a guaranteed success nor a lost cause; it is a fragile, continuous imperative. While an absolute, weapon-free world may seem distant, sustaining a functional non-proliferation regime is essential to preventing dynamic regional disputes from turning into existential threats.