Russian missiles hit Sloviansk, Donetsk Oblast.

"The Russians have invited us to come, and that's a significant statement from them," Witkoff said in an interview with Bloomberg TV in Davos on Jan. 21, amid a Washington-led push to broker peace between Kyiv and Moscow.

Klitschko's press service told the Kyiv Independent that the 600,000 number was calculated from mobile phone billing data.

Greenland must start preparing for the possibility of a military invasion, even though the scenario remains unlikely, the island's prime minister, Jens-Frederik Nielsen, said.

Eleven people were injured in an overnight attack in Russia's Republic of Adygea, while a separate drone strike sparked a fire at an oil refinery in neighboring Krasnodar Krai, local authorities and media reported Jan. 21.

U.S. President Donald Trump said on Jan. 20 that he has been unable to end Russia’s war against Ukraine, claiming that neither side is consistently willing to agree to a deal at the same time.

U.S. President Donald Trump’s envoys met with Russian President Vladimir Putin’s envoy Kirill Dmitriev in Davos on Jan. 20 to discuss Washington’s peace plan for Ukraine, with both sides describing the talks as constructive.

Prominent Ukrainian writer and translator Andriy Lyubka announced he has decided to mobilize and join the Armed Forces of Ukraine.

Ukrainian companies have submitted the first projects to the minerals deal fund, with initial investments expected to arrive in the next three to six months, said panelists at Ukraine House Davos’ "Partners in Prosperity" event during the World Economic Forum on Jan. 20.

The ministry said that despite overnight missile and drone strikes targeting key energy hubs supplying the Chornobyl Exclusion Zone, all facilities at the plant — including the New Safe Confinement and spent nuclear fuel storage sites — are now receiving power from Ukraine's unified energy system and are operating as required.

At least one person in Kyiv has been injured, local authorities reported. Ukraine's Air Force has warned that Russian ballistic missiles are targeting multiple regions, including the capital.

"Last month, 35,000 were killed; all these losses are verified on video. If we reach 50,000, we will see what happens to the enemy," Fedorov said.

"Russia plans to have an army of 2 to 2.5 million personnel by 2030. So a European army, while each country keeps its own sovereign forces, must be able to respond. It should be no smaller than 3 million," Volodymyr Zelensky told journalists.