U.S. Army Secretary Dan Driscoll is in Abu Dhabi to meet with Russian officials, two U.S. officials and two diplomatic sources who were not authorized to speak publicly told CBS News.

A European proposal meant to rival President Trump’s 28-point peace plan calls for Ukraine to keep its military forces and leaves the door open for the country to join NATO, according to a

NATO Secretary-General Mark Rutte says a US peace proposal has helped bring Kyiv and Washington closer together on the way toward ending the war between Russia and Ukraine, Europe's biggest and deadliest conflict since World War II.

Sen. Mitch McConnell, a staunch supporter of Ukraine, has warned the proposal to end the war with Russia could come with consequences.

Europeans have submitted a modified version of the United States' peace plan for Ukraine that pushes back on proposed limits to Kyiv's armed forces and territorial concessions, according to a document seen by Reuters on Sunday.

The fresh attacks came amid renewed efforts at meetings in Geneva to secure a US-led peace deal acceptable to both Russia and Ukraine, despite Vladimir Putin showing no sign he wants the war to end.

Ukrainian, American and European officials gathered in Geneva on Nov. 23 to discuss a draft plan presented by Washington to end the war in Ukraine.

NATO fighter jets were scrambled and ground-based air defense systems put on high alert in Poland and Romania during an overnight Russian attack on Ukraine.