NATO chief Mark Rutte said Thursday that any European security guarantees for Ukraine under a potential peace deal with Russia would need to be backed up by the United States. "Strong security ...

Ukrainian President Volodymyr Zelenskiy said on Wednesday he and NATO Secretary General Mark Rutte discussed the importance ...

Ukraine is urging Europe to quickly select a representative for potential talks with the U.S. and Russia on ending Kyiv’s war ...

French President Emmanuel Macron will host European leaders, including Britain's prime minister on Monday for an emergency ...

NATO Secretary General Mark Rutte confirmed that the alliance would reach a new agreement for defense spending targets when ...

Increasingly alarmed that U.S. security priorities lie elsewhere, a group of European countries has been working on a plan to ...

U.K. prime minister also wants the EU to target Russia’s energy revenues to keep the pressure on “rattled” leader Vladimir Putin.

The defense secretary addressed the first meeting of the Ukraine Defense Contact Group since President Trump’s inauguration.

The U.S. defense secretary also said that a return to Ukraine’s pre-2014 borders, before Russia invaded Crimea and eastern ...

Julian Mark covers breaking business and technology news for The Washington Post. He previously worked overnight with The Post's Morning Mix team, covering national news. Before joining The Post ...

Speaking at a press conference in the Belgian capital on Monday afternoon alongside Nato secretary general Mark Rutte, Sir Keir said the UK will “stay resolute” in its commitment to working ...