The president's comments to reporters in Ireland come as the average price of diesel in the U.S. climbed above $6 a gallon.

Russia plans to test a new 800-km ballistic missile by year's end, with an analyst warning its advanced maneuverability could strain Ukraine air defense.

Engineers in Russia are using Chinese components to mass-produce inexpensive arms and steal a march on its adversaries.

As Lithuania investigates a drone incursion, the country's defence minister tells us Nato is effectively at war with Russia.

This hybrid campaign is all the war Russia wants or needs—and stoking fear that Moscow just might directly strike Ukraine’s European allies is part of it. If this is what Russian President Vladimir Putin is really up to in Europe,

Two Italian Eurofighter Typhoons scrambled under NATO command and downed a drone over Lithuania that officials say likely came from Belarus.

Intelligence services allegedly attempted to pay people to surveil and kill people perceived to be aligned with Ukraine

Nearly 200 men who took part in the war in Ukraine are among the candidates for this week’s parliamentary election in Russia.