The United States, Russia, China, and India are known to possess a nuclear triad, meaning they can deliver nuclear weapons by land, sea, and air.
Notes on verification
The four countries listed do possess nuclear triads, confirmed by the source article, but the claim is incomplete since Pakistan also achieved triad status in 2017 per multiple independent sources. [tier=unverified indep_score=0.375 clusters=1 claim_tier=notable] [harvest 2026-09-15: +4 source(s) on new hosts; tier unverified->bronze indep=0.525 clusters=5] [kind-backfill 2026-09-15: kind=interpretive eligibility=medium]
Sources
- List of nuclear weapons (wikipedia)
- https://vajiramandravi.com/upsc-exam/nuclear-triad/ (corroboration)
- https://nationalinterest.org/blog/buzz/heres-why-americas-nuclear-triad-is-so-important (corroboration)
- https://www.ibtimes.co.uk/china-h6n-jl1-nuclear-triad-air-leg-1819426 (corroboration)
- https://www.wionews.com/photos/only-4-countries-have-the-ultimate-nuclear-weapon-advantage-who-controls-the-world-s-nuclear-triads-1763975782185 (corroboration)
- https://chinapower.csis.org/china-nuclear-weapons/ (corroboration)