Polish defense chief said it came at “a particular moment, where peace talks are underway, where there is hope that this war... has a chance to end. Russia provokes once again.” ...

Poland's defense minister said that a flying object that crashed and exploded in a cornfield in eastern Poland early ...

NATO's top military officials emerged from talks without a concrete plan to guarantee Ukraine's security – at least not one they were willing to discuss publicly.

The attack allegedly hit the Novoshakhtinsk oil refinery, which has previously been targeted in Ukrainian drone strikes.

Foreign Minister Sergei Lavrov tamped down any progress made at a one-of-a-kind summit at the White House earlier this week.

Moscow demanded that it must participate in any security guarantees provided by the U.S. and Europe to Ukraine. That is likely a non-starter for the West and shows the challenge facing allies as they ...

NPR's Michel Martin asks former U.S. National Security Advisor John Bolton about the prospects for security guarantees in Ukraine and what they might look like.

NATO defense chiefs held a “candid discussion” Wednesday about what security guarantees they could offer Kyiv to help forge a ...

NATO fighter jets have been sent to Romania's border after a Russian drone strike landed dangerously close to its territory.

Moscow has resisted a Putin-Zelensky summit and security guarantees for Ukraine. Trump’s claims that the Kremlin’s position ...

NATO defense chiefs are holding a virtual meeting to discuss security guarantees for Ukraine as part of efforts to end Russia ...