The US-led NATO alliance must prepare for the possibility that Russia and China could launch wars in Europe and the Pacific ...

The warring sides remain far apart after the third round of U.S.-brokered peace negotiations on Wednesday. But there was ...

Russia is weaponizing migration to destabilize Europe, using violence and human trafficking networks in Libya to sow division ...

Russia now controls more than two-thirds of Ukraine’s Donetsk region — the main theater of the ground war. Russian forces ...

For about 30 hours, the illusion of transatlantic unity over Ukraine was maintained. But US President Donald Trump’s response to a proposal from Russia’s Vladimir Putin shattered that.

Flight data showed how American and British reconnaissance aircraft flew from England toward Russia on Monday.

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology. She ...