NATO Secretary General Mark Rutte said on Monday NATO membership for Ukraine was not under discussion but that there was a discussion on "Article 5" type security guarantees for the country that Russia invaded in February 2022.

The brutal Russian attack using strategic bombers came just hours after Putin and Trump spoke on the phone about a potential road to peace in Ukraine.

Captain Mark Lawrence, commodore of Destroyer Squadron Two and sea combat commander aboard the Gerald R. Ford, told U.S. Naval Forces Europe-Africa on Sunday: "Our collective surface force's transit into the North Sea reaffirms our resolve to enhance peace, stability and deterrence across the European continent."

CNN data analyst Harry Enten reports that the majority of Ukrainians want to find a way to end the ongoing conflict with Russia. JOHN BERMAN, CNN HOST: That was Ukrainian President Volodymyr Zelenskyy in the hours leading up to his meeting at the White House today with President Trump.

U.S. President Donald Trump could offer NATO-like protection of Ukraine, and Russia is open to the idea, one of his top foreign policy officials said on Sunday ahead of a meeting with Ukraine and European leaders to hammer out details of possible security guarantees for Kyiv.

"This latest strike against our energy security is outrageous and unacceptable!" Hungarian Foreign Minister Péter Szijjártó posted to X on Monday morning.

Rheinmetall stock is rated a buy with 50% upside potential as NATO targets 3.5% GDP defense spending. Read here for an analysis of RNMBY stock.

Russian leader Vladimir Putin agreed at his summit with President Donald Trump that the United States and its European allies could offer Ukraine a security guarantee resembling NATO’s collective defense mandate as part of an eventual deal to end the war,

Turkey's development of naval drones highlight how it is independently producing and innovating a layered defense system.