World’s nuclear arsenal expansion is driven by US and Russia, researchers warn

Most nuclear-armed states continued modernising their arsenals in 2024, raising the risk of a new arms race, researchers said Monday. The Stockholm International Peace Research Institute said the United States and Russia, holding 90% of global stockpiles, spent last year upgrading existing warheads and deploying new-generation nuclear weapons.

Jun 16, 2025 - 16:00
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World’s nuclear arsenal expansion is driven by US and Russia, researchers warn
Most nuclear-armed states continued modernising their arsenals in 2024, raising the risk of a new arms race, researchers said Monday. The Stockholm International Peace Research Institute said the United States and Russia, holding 90% of global stockpiles, spent last year upgrading existing warheads and deploying new-generation nuclear weapons.

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