Updated · Stockholm International Peace Research Institute · Jun 8
SIPRI Warns Nuclear Reliance Is Rising in 2026 as China Nears 1,000 Warheads by 2030
Updated
Updated · Stockholm International Peace Research Institute · Jun 8
SIPRI Warns Nuclear Reliance Is Rising in 2026 as China Nears 1,000 Warheads by 2030
3 articles · Updated · Stockholm International Peace Research Institute · Jun 8
Summary
SIPRI’s 2026 Yearbook says nuclear-armed states deepened reliance on nuclear weapons in 2025, reversing decades of efforts to reduce their numbers and role while escalation and miscalculation risks climbed.
Most nuclear powers modernized arsenals or deployed new nuclear-capable systems, while strategic ambiguity widened and direct crisis-management channels weakened, raising the chance that leaders act on bad information during a confrontation.
China’s buildup remains a central driver: SIPRI says Beijing could exceed 1,000 warheads by 2030, prompting US advocates to push for more deployed warheads even though China would still hold only about one-quarter of current US and Russian stockpiles.
Europe and Asia also showed broader nuclear drift, with the UK planning to buy 12 nuclear-capable F-35As for NATO sharing, France discussing wider deterrence ties, North Korea testing new missiles, and Russia expanding dual-capable systems in Belarus.
The warning comes as the 2026 NPT Review Conference ended without a final document for the third straight time, underscoring a weakening non-proliferation regime and the lack of any successor to New START.
As arms control treaties collapse, what is the new rulebook to prevent nuclear war?
If authoritarian leaders are unpredictable, has nuclear deterrence become a dangerous gamble?
With AI accelerating military decisions, are we approaching an automated nuclear war?
Global Nuclear Stockpiles Rise in 2026: Modernization, Geopolitical Tensions, and Escalation Risks
Overview
Global nuclear arsenals are expanding again, reversing decades of disarmament. As of June 2026, all nine nuclear-armed states are modernizing and enhancing their weapons, moving away from previous reductions. This shift is driven by rising geopolitical tensions and the breakdown of arms control agreements, leading to a renewed focus on nuclear deterrence. Ongoing technological advancements and the collective push to upgrade arsenals are challenging strategic stability worldwide. The current trend marks a concerning era where the risk of escalation and nuclear conflict is increasing, highlighting the urgent need for renewed international efforts toward arms control and disarmament.