The long-range missiles provided by the United States and Britain were used to strike inside Russian territory, despite concerns that their use would escalate the conflict. Kyiv’s stockpiles are running out.

Vladimir Putin says Russia is 'striving' to end the conflict in Ukraine. The Russian President said the Government was prepared to use intermediate-range hypersonic ballistic missiles or to use more powerful intermediate-range weapons.

"Ukraine was brutally attacked on Christmas Day," said Keith Kellogg, President-elect Donald Trump's pick for Ukraine and Russia envoy.

President Biden on Wednesday denounced Russia's large-scale Christmas Day attacks on Ukraine that damaged critical energy infrastructure and vowed to continue a U.S. surge in weapons deliveries" to Kyiv.

Moscow again struck Ukraine’s energy infrastructure, part of an effort to wear down the country. “In the trenches, there are no holidays,” one man said.