U.S. Ambassador to NATO Matt Whitaker on Russia's demands stalling peace talks, the 'cards' President Trump can use to encourage peace and a report that the Pentagon is preventing Ukraine from using long-range missiles to attack Russia.

BRUSSELS (Reuters) -NATO allies and Ukraine are working together to make sure security guarantees for Ukraine are at such a robust level that Russia will never try to attack again, NATO chief Mark Rutte said on Friday,

Two German fighter jets were scrambled to the Romanian-Ukrainian border on Tuesday night in response to a Russian drone attack in the frontier region.