Wagner Group establish headquarters in Rostov-on-Don.

Zelensky dismissed Russian claims that Ukrainian drones targeted Putin’s residence as “another lie,” warning Moscow is using the allegation as a pretext for possible strikes on Kyiv and government buildings.

"President Trump has concluded a positive call with President Putin concerning Ukraine," said White House Press Secretary Karoline Leavitt.

Ukraine’s Southern Operational Command says Huliaipole is now a gray zone, with no clear front line anymore, according to spokesperson Vladyslav Voloshyn.

"I told (Trump) that we would like to consider guarantees for 30, 40, or even 50 years, and that would be a historic decision by president Trump. The president said he would think about it," President Volodymyr Zelensky said.

Russian troops shot dead two unarmed Ukrainian prisoners of war on Dec. 27 in the village of Shakhove near Pokrovsk in Donetsk Oblast, Ukraine’s Prosecutor General’s Office reported on Dec. 29, in what appeared to be at least the third reported case this month of captured Ukrainian soldiers being killed after being taken prisoner.

Explosions reportedly rocked the Khanskaya military airfield near the southern Russian city of Maykop as air defenses were engaged late on Dec. 29.

"They're going to be helping. Russia is going to be helping," U.S. President Donald Trump said when asked if Moscow would hold any responsibility for Ukraine's reconstruction.

U.S. President Donald Trump said on Dec. 28 that he held a phone call with Russian President Vladimir Putin ahead of his scheduled meeting with Ukrainian President Volodymyr Zelensky.

Russian troops opened artillery fire against the Kherson Thermal Power Plant (TPP), causing significant damage, head of Ukraine's Naftogaz said on Dec. 28.

IAEA Director General Rafael Grossi thanked "both sides" for agreeing to a temporary "window of silence," which is "part of ongoing efforts to prevent a nuclear accident during military conflict."