"According to received reports, a drone was spotted at an altitude of about 200 meters, last seen near Vilnius," said Darius ...

"Russia will be ready for confrontation with Europe — and therefore with us — as early as 2027," Polish Prime Minister Donald ...

BRUSSELS — The United States and NATO rejected key Russian security demands for easing tensions over Ukraine but left open Wednesday the possibility of future talks with Moscow on arms control ...

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

NATO is unlikely to accede to Russian demands for a say-so on who joins the military alliance, so the best-case scenario, experts say, is that both parties just keep talking.

While the global spotlight recently focused on diplomatic tensions between the United States and Denmark over Greenland, a quieter but equally significant development has been unfolding farther north.

Putin: U.S. and NATO have "ignored" security demands 01:58. Russian President Vladimir Putin on Tuesday accused the U.S. and its allies of ignoring Russia's top security demands but said Moscow is ...

As the world grapples with multiple geopolitical flashpoints — from the fallout of strikes in Iran and stalled Ukraine-Russia ...

NATO troops, warships and aircraft are taking part in massive military exercises stretching across the Atlantic as tensions with Russia rise.

Russian President Vladimir Putin said Tuesday the U.S. and its allies, not the Kremlin, are to blame for rising tensions in Europe that have revived talk of war.

RIGA, Latvia — NATO foreign ministers began talks here Tuesday as the alliance confronts mounting tensions with Russia over its military buildup near Ukraine. U.S. Secretary of State Antony ...

Trump-NATO tensions are high but the Europeans were all smiles with the American president who they fear will withdraw from the alliance.