SIPRI Yearbook 2025
Published on 30 Oct 2025
The Stockholm International Peace Research Institute (SIPRI) reported that as of January 2025, the global nuclear arsenal stands at 12,241 warheads.
Of this, 9,614 are in military stockpiles meaning they are ready or available for use by the armed forces.
Russia and the USA together possess around 90% of all nuclear weapons.
Nearly all nine nuclear-armed states are modernising their arsenals, with China expanding fastest, adding about 100 warheads annually since 2023.
India now has 180 warheads, surpassing Pakistan's 170.
SIPRI is an independent international institute established in 1966 and based in Stockholm, Sweden.
It conducts research on conflict, armaments, arms control, and disarmament, providing reliable open-source data and analysis to policymakers, researchers, and the public.
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