A high-tension UN meeting on nuclear non-proliferation is underway as signatories gather under the Nuclear Non-Proliferation Treaty (NPT) amid rising friction among major powers, with the four‑week session starting this week.

Disarmament gains have stalled as geopolitical tensions rise, signaling a broader risk environment for nuclear non-proliferation efforts and threatening the post‑Cold War trend of reductions.

Experts warn that a third consecutive failure to issue a final political declaration could erode the treaty over time, though officials emphasize the NPT would not collapse immediately, with AI and human-control discussions expected to feature.

AI is entering the governance debate, with calls for human oversight of nuclear weapons and concerns that AI-enabled early‑warning and decision systems could raise the risk of accidental or deliberate nuclear use.

Recent SIPRI data show the United States and Russia hold nearly 90% of global nuclear weapons, while China is rapidly expanding its stockpile, triggering alarm among allies and prompting G7 scrutiny.

The federation of goals remains clear: prevent spread, pursue disarmament, and encourage civilian nuclear cooperation among the nine recognized nuclear powers.

The NPT summit at the United Nations will open with heightened tensions and doubts about reaching a new agreement, building on strains evident since the 2022 review conference.

Overall, the nine recognized nuclear powers hold about 12,241 warheads as of January 2025, with modernization programs advancing and concerns growing about rapid modernization, especially in China and Russia.

There is a pronounced crisis perception among NPT states parties, with no bilateral arms control agreements remaining between the United States and Russia after the expiration of New START, while global nuclear capabilities continue to rise.

Ukraine, Iran, and North Korea are flagged as major friction points that could undermine consensus and progress on disarmament during the summit.

Leaders warn that trust in the NPT framework is eroding, risking deadlock or unraveling of the treaty if consensus remains out of reach at the summit.

Past deadlocks at review conferences, driven by disagreements over Middle East weapons‑free zones and Ukraine references, illustrate how geopolitical tensions can stall consensus and hinder final declarations.