Ahead of nuclear non-proliferation treaty meet, China & NATO train guns on each other

The 11th Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is scheduled from April 27 to May 22, 2026, at UN Headquarters in ...

What Happened

The 11th Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is scheduled from April 27 to May 22, 2026, at UN Headquarters in New York, with Ambassador Do Hung Viet of Vietnam as President-designate.
Ahead of the conference, NATO issued a formal statement accusing China of "rapidly expanding and diversifying its nuclear arsenal without transparency," while simultaneously reaffirming its own NPT obligations.
China's Foreign Ministry called on the United States to "halt armed attacks on civilian nuclear facilities in non-nuclear weapon states" — an apparent reference to strikes on Iranian nuclear facilities in June 2025 — and urged the conference to address what it terms disproportionate US and Western nuclear obligations.
China raised specific proliferation concerns around AUKUS (the US-UK-Australia trilateral pact involving nuclear-powered submarine technology), US nuclear sharing arrangements with allies, and the potential for Japanese nuclear weapons acquisition.
France has revised its nuclear posture by lifting its self-imposed 300-warhead ceiling and proposing extended nuclear deterrence to seven European allies, reflecting anxieties over US security guarantees under changing geopolitical conditions.
Countries outside the NPT framework — India, Pakistan, Israel, and South Sudan — remain a structural challenge to the treaty's universality.

Static Topic Bridges

The Nuclear Non-Proliferation Treaty (NPT)

The NPT, which entered into force in 1970, is the cornerstone of the global nuclear non-proliferation regime. It is built on three interlocking pillars: non-proliferation (preventing the spread of nuclear weapons), disarmament (obligating nuclear-weapon states to move toward eliminating their arsenals under Article VI), and peaceful use of nuclear energy (guaranteeing non-nuclear states access to civilian nuclear technology under Article IV). The treaty divides its 191 member states into five recognized Nuclear-Weapon States (NWS) — the US, Russia, UK, France, and China — and Non-Nuclear-Weapon States (NNWS). Every five years, parties convene for a Review Conference to assess implementation.

Opened for signature: 1968; entered into force: March 5, 1970.
Article VI obligates all parties, especially NWS, to pursue negotiations in good faith toward complete nuclear disarmament.
Article IV affirms the "inalienable right" of all parties to develop nuclear energy for peaceful purposes.
The 2022 Review Conference failed to adopt a final consensus document, primarily due to disagreements over Ukraine and Middle East issues.
India, Pakistan, Israel, and South Sudan have never joined the NPT; North Korea announced withdrawal in 2003.

Connection to this news: The 2026 Review Conference is convening amid sharp disagreements between NWS themselves — China and NATO powers — over who bears the greater proliferation risk, making consensus on outcome documents extremely difficult.

AUKUS and the Grey Zone of Nuclear Non-Proliferation

AUKUS, announced in September 2021, is a trilateral security partnership between Australia, the United Kingdom, and the United States. Its most consequential element involves transferring nuclear-powered submarine propulsion technology to Australia — a non-nuclear-weapon state. This arrangement has been flagged by critics, including China, as creating a loophole in the NPT: the treaty does not explicitly regulate nuclear-powered (as opposed to nuclear-armed) submarines, leaving open the possibility of enriched uranium being transferred under a naval propulsion exemption from IAEA safeguards.

AUKUS Pillar 1: Delivery of nuclear-powered submarines to Australia (Virginia-class by the early 2030s, then SSN-AUKUS by the 2040s).
AUKUS Pillar 2: Sharing of advanced capabilities including AI, quantum technologies, and cyber.
Under the NPT, nuclear-weapon-state parties (US and UK) are prohibited from transferring nuclear weapons but not nuclear propulsion technology to NNWS; the legal grey area stems from Article 14 of the IAEA's model safeguards agreement (INFCIRC/153) which allows material to be withdrawn from safeguards for non-proscribed military use.
China has repeatedly raised AUKUS at NPT PrepCom sessions as a precedent that could be misused by other states.

Connection to this news: China's invocation of AUKUS at the 2026 NPT Review Conference is a direct diplomatic counter-move to NATO accusations about Beijing's nuclear build-up, framing Western arrangements as the primary systemic threat to the non-proliferation regime.

NATO's nuclear posture rests on the doctrine of extended deterrence — the commitment by nuclear-weapon states (primarily the US) to use their nuclear arsenals to defend non-nuclear allies. This is operationalized through NATO's nuclear sharing arrangement, where US B61 gravity bombs are stationed at air bases in five non-nuclear NATO allies (Belgium, Germany, Italy, Netherlands, Turkey), whose aircraft are certified and trained to deliver them. France, as an independent nuclear power, has now moved toward offering its deterrent umbrella to select European partners.

The US maintains an estimated 100 tactical nuclear weapons in Europe under NATO's nuclear sharing framework.
NATO's Nuclear Planning Group (NPG), established in 1966, governs nuclear doctrine and policy.
France's force de frappe comprises submarine-launched ballistic missiles (M51) and air-launched cruise missiles (ASMP-A); the recent removal of the 300-warhead ceiling signals a potential build-up.
Article 5 of the NATO Charter — collective defense — is the political underpinning of extended deterrence commitments.

Connection to this news: France's decision to raise its warhead ceiling and extend deterrence to seven European allies is an escalatory development the NPT Review Conference must grapple with, alongside China's own arsenal expansion — complicating the disarmament pillar of the treaty.

India's Position in the Global Nuclear Order

India is a nuclear-weapon state that has never signed the NPT, conducting its first nuclear test ("Smiling Buddha") in 1974 and declaring itself a nuclear-weapon state after the 1998 Pokhran-II tests. India maintains a credible minimum deterrence doctrine and a strict No-First-Use (NFU) policy. The US-India Civil Nuclear Agreement of 2008 (the "123 Agreement") and the resulting NSG waiver gave India access to civilian nuclear commerce despite being outside the NPT.

India's nuclear doctrine: credible minimum deterrence, NFU (with the caveat of massive retaliation), and no use against non-nuclear states.
India is not a signatory to the NPT, CTBT (Comprehensive Nuclear-Test-Ban Treaty), or the Treaty on the Prohibition of Nuclear Weapons (TPNW).
India has observer status at the Nuclear Suppliers Group (NSG) but is blocked from full membership by China, which insists on NPT membership as a prerequisite.
As of recent estimates, India's nuclear stockpile is approximately 172 warheads (SIPRI 2024).

Connection to this news: As a non-NPT nuclear state, India is not a party to the Review Conference but is directly affected by its outcomes — particularly debates around AUKUS-type technology transfers, NSG criteria, and any movement toward a multilateral nuclear disarmament framework.

Key Facts & Data

NPT membership: 191 states parties (as of 2026); four UN member states outside: India, Pakistan, Israel, South Sudan.
The 2026 Review Conference is the 11th such conference since the NPT entered into force in 1970.
China's nuclear arsenal: estimated 500+ warheads as of 2024 (SIPRI), the fastest-growing among the P5.
US nuclear arsenal: approximately 5,550 warheads total; ~1,700 deployed strategic warheads.
The last successful NPT Review Conference final document was adopted in 2010; 2015 and 2022 both ended without consensus.
AUKUS submarine deal involves weapons-grade (highly enriched) uranium for propulsion — a first for a non-nuclear state.
China's proposed No-First-Use multilateral treaty: first proposed in the 1990s, a draft was submitted to NPT PrepCom sessions.