SIPRI's 2026 yearbook shows China's nuclear warhead stockpile grew to 620, up 20 from last year, making it the fastest-expanding arsenal globally.

Swedish think-tank says Beijing now has 620 nuclear warheads and may be increasing deployment as New Start’s expiry ends arms control era.

The world’s nuclear-armed states are increasingly moving warheads from storage onto operational delivery systems, raising the risk of conflict despite a gradual decline in overall…