Ukraine's gas facilities have suffered severe damage from Russian drone and missile attacks, forcing the country to import more gas

As Washington ramps up its negotiations with Ukraine and Russia and U.S. President Donald Trump expresses optimism that a peace deal could be close, there are still some very critical and contentious issues on which Kyiv and Moscow are in deep disagreement.

Nov. 25 (UPI) -- At least six people were killed by Russia in an overnight attack on Kyiv, the city's mayor said Tuesday, as the United States and Ukraine held talks over the weekend to finalize a peace plan.

Military officials in Ukraine said 438 drones and 14 missiles were destroyed or otherwise didn't hit their targets. Missile hits and 26 strike drones were recorded impacting across 15 locations, with falling debris reported at 12 locations.

As President Trump pushes for peace, Ukraine's growing manpower crisis spells new uncertainties on the battlefield and the negotiating table.

While Ukraine might be inching toward accepting a deal, skeptics warn that it still could fall apart if neither side can find an offer tolerable to the other.

The Army secretary, a close friend of Vice President JD Vance, has been newly tasked with helping end the war in Ukraine.

Kyiv Mayor Vitali Klitschko says the deadly rocket attacks set buildings ablaze and damaged infrastructure in the city.

Top European and Ukrainian envoys have met in Geneva ahead of talks with U.S. Secretary of State Marco Rubio about President Donald Trump's proposal to end Russia’s war on Ukraine.

The president is optimistic that he can finally achieve one of his 2024 campaign goals, but the thorniest issues have yet to be resolved.