The United States is accusing Russia of a “dangerous and inexplicable escalation” of the nearly four-year war in Ukraine at a time when the Trump administration is trying to advance negotiations toward peace.

Russia's "massive" military losses in Ukraine are unsustainable, NATO's secretary general warned with the conflict about to enter its fourth year with no clear end in sight.

The meeting between US officials and the Russian president comes amid rising tensions between Moscow and Washington

Ukraine's chief of defense estimated Wednesday that 200,000 soldiers have gone absent without official leave during an address to parliament.

The daytime temperature in Kyiv, which has endured freezing temperatures for more than two weeks, was minus 12 degrees C (about 10 degrees F), with streets covered in ice and the rumble of generators heard throughout the capital.

Russia fired almost 300 drones, 18 ballistic missiles and seven cruise missiles at eight regions overnight, Ukrainian President Volodymyr Zelensky said on social media.