Russian Foreign Minister Sergei Lavrov warned against the deployment of troops from European NATO allies to Ukraine and the seizing of frozen Russian assets, both ideas under discussion among Western partners of Kyiv.

For NATO, boosting support for Ukraine also is viewed as a way to keep Russia on its heels. While U.S. President Donald Trump attempts to negotiate a peace deal between the two countries, Rutte said allies must keep the pressure on Moscow by getting more arms into the hands of Ukrainian troops.

The Kremlin says the meeting with Trump's envoys was "constructive" but "no compromise" has been reached over territorial concessions for Ukraine.

NATO fighter jets were scrambled and air defense systems put on alert in Poland in response to Russia’s latest overnight drone and missile strikes in Ukraine.

NATO chief Mark Rutte said Thursday that if the United States and Europeans could agree on a plan to end the war in Ukraine, this would be a "test" of whether Russia "really wants peace".

NATO considers "more aggressive" stance against Russia's hybrid warfare, including pre-emptive cyber operations, as tensions escalate over sabotage.

Russia has unleashed a fresh barrage of overnight missile and drone attacks on Ukraine's energy infrastructure.

Russian Foreign Minister Sergey Lavrov accuses West of trying to 'exploit' Ukraine war to 'divert attention' from other crucial issues like Palestine

The Kremlin said on Tuesday that European claims that Russian President Vladimir Putin wanted to restore the Soviet Union were wrong and that claims Putin plans to invade a NATO member were complete stupidity.