German publication Der Spiegel said leaked documents show the modernization of Russian nuclear infrastructure.

Russia possesses the world’s largest nuclear arsenal (5,580 warheads) and has repeatedly threatened escalation over the ...

Ukraine's audacious targeting of major Russian airbases is "grounds for a nuclear attack," a prominent Kremlin propagandist ...

Russia maintains the world's most extensive nuclear weapons inventory, estimated at 5,580 warheads, with around 1,710 ...

The looming expiration of the New START Treaty, the only remaining bilateral nuclear arms control agreement between the ...

Deadlier weapons, more nations, autocrats in charge, disinformation and collapsing arms control — the risk of nuclear ...

Sunday's strike means we now have to contend with the fact that an impenetrable nuclear arsenal is not so impenetrable after ...

Kyiv’s attack on the country’s bomber fleet appeared designed to show Russia’s leader that continuing the war carries big ...

Some 150 droves are transported by truck to inside Russia, where swarms of drones arose from them and went on the attack.

Mr. Putin has courted Mr. Xi for years, in more than 40 personal meetings, and has cemented a far deeper partnership with ...

Could Ukraine produce a nuclear bomb and transborder missiles to halt Russia’s invasion? A global expert on atomic arms ...