While nuclear crises between the “Big Three” can still be managed, preventing an arms race will be much more difficult.

Army Secretary Daniel Driscoll on Wednesday warned that Ukraine’s recent drone strikes deep inside Russia reveals the United States has its own vulnerabilities in the face of similar attacks.

Ukraine’s Volodymyr Zelensky rejected Russian terms to end the war, while Vladimir Putin dismissed any meetings with what he ...

A stunning attack in Russia highlights how small drones can be outfitted with new software and components to turn them into ...

Trump's phone call with Putin is the second one publicly disclosed in recent weeks as the president distances himself from the war between Russia and Ukraine.

Putin in the call with Trump vowed retaliation against Ukraine for its recent drone attack on Russian bombers, the U.S.

Europe has the money and the artillery shells, but key U.S. capabilities like operational intelligence and air defense would ...

The audacious attacks on Russian airfields highlight the power of unconventional, asymmetric warfare — and the threat to U.S.

Assaults in Russia and Ukraine have shown major military powers that they are unprepared for evolving forms of warfare, and ...

Ukraine's Western backers are gathering to drum up more weapons and ammunition for the country's efforts to repel Russia's ...

The Trump administration is proposing an arrangement that would allow Iran to continue enriching uranium at low levels while the United States and other countries work out a more detailed plan ...

Hegseth’s predecessor, Lloyd Austin, created the group after Russia invaded Ukraine in 2022. Since then, more than 50 member ...