Steve Witkoff says Vladimir Putin agreed at his summit with Donald Trump to allow the U.S. and European allies to offer Ukraine a security guarantee resembling NATO’s collective defense mandate.

Special U.S. envoy Steve Witkoff says Russian leader Vladimir Putin agreed to allow the U.S. and Europe to offer Ukraine a security guarantee resembling NATO's collective defense mandate.

The Kremlin’s goal is to destabilize Europe, and attacks on infrastructure are a preferred weapon, a new report said.

Ukrainian President Zelenskyy and other European leaders will meet with President Trump at the White House today after Trump's summit with Russian President Putin on Friday. NBC News' Yamiche Alcindor and Richard Engel report the latest.

As President Donald Trump hosted Ukrainian President Volodymyr Zelenskyy and top European leaders to energize months of stalled U.S.-led efforts to halt Russia's 3 1/2-year-old war, the tone and style of the sit-down was far different than when Zelenskyy was hounded out of the White House in February.

Russia’s foreign ministry spokeswoman Maria Zakharova on Monday warned NATO leaders against deploying troops in Ukraine as world leaders work to bring about an end to the nearly three-years long

Speaking during a brief media availability alongside Zelensky in the Oval Office,Trump told reporters that both Europe and the United States would be involved in securing a post-war peace for Ukraine, but he refused to say outright that American troops would not be put on the ground to maintain that peace.

NATO Secretary General Mark Rutte said Monday on Fox News’ “The Ingraham Angle” that President Donald Trump’s initial criticism of the intergovernmental organization “was right. ” Trump on Monday met with world leaders,

European shares opened higher and oil prices slid on Tuesday before a key meeting of central bankers and as traders evaluated promising diplomatic signals toward ending hostilities between Russia and Ukraine.

European leaders may have rushed to Washington ostensibly to throw a protective arm around President Zelensky and head off any repeat of February's Oval Office bust-up. But their real aim is to stop US President Donald Trump threatening long-term European security after his abrupt change of course over how best to end the war in Ukraine.