The drone and missile attacks on Ukraine came as the US president put on hold his plans for an imminent summit in Budapest.

Russian jets violated NATO airspace over Lithuania for 18 seconds during suspected refueling exercise. Nation's president calls it a breach of international law amid tensions.

The Kremlin may have convinced itself that US President Donald Trump didn’t have the stomach to apply real pressure on Moscow to end the brutal conflict in Ukraine.

As Zelenskyy lauds Europe and the U.S. for ramping up economic pressure on Putin over the war in Ukraine, Moscow dismisses them as a counterproductive "act of war."

Vladimir Putin responded to President Trump slapping sanctions on Russia's two biggest oil companies in a U.S. policy shift over the war in Ukraine.

The US government jolted energy markets when it sanctioned Russia’s two biggest crude oil producers on Oct. 22. All eyes are now on how the sanctions will affect the supply and price of petroleum across the world.

Ukrainian President Volodymyr Zelenskiy hailed "very important" new U.S. and European Union energy sanctions on Russia on Thursday, but said more pressure would be needed on Moscow to secure a ceasefire in the war.