Secret Russian Intelligence Document: Russia’s domestic security agency says that China is spying on the Russian military’s ...

Missile defense systems are nothing new. History shows that even if they work as advertised – a big if – they’re a bad idea ...

Russia sees little chance of saving its last nuclear accord with the United States, due to expire in eight months, given the ...

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

EDWARD FISHMAN is a Senior Research Scholar at Columbia University’s Center on Global Energy Policy and the author of ...

The Trump administration barred people from 12 countries from entering the U.S., escalating the president’s crackdown on ...

President Donald Trump said Wednesday that Vladimir Putin intends to retaliate “very strongly” against Ukraine for a surprise ...

A phone call between President Donald Trump and Russian President Vladimir Putin on Wednesday has sent ripples through the ...

The Ukrainian operation was “grounds for a nuclear attack,” declared Vladmir Solovyov, a firebrand host on Russian state TV, ...

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

Zelensky’s ace in the hole, Putin’s all-inclusive demands, Trump rules out Iranian uranium enrichment, DOD sends civilians to ...

A bomb planted by Ukrainian spies rocked the underbelly of Russia’s Kerch Bridge which links occupied Crimea to the Russian ...