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.

President-elect Trump’s choice for special envoy to Ukraine and Russia, retired Lt. Gen. Keith Kellogg, slammed the Russian military missile and drone attack on Christmas Day and said the U.S. is “more resolved than ever to bring peace to the region.

Russia's Federal Security Service (FSB) said on Saturday it had foiled a plot by Ukraine to kill a high-ranking Russian officer and a pro-Russian war blogger with a bomb hidden in a portable music speaker.

Russia's top security agency says it has arrested four Russians accused of making preparations to kill senior Defense Ministry officials on Ukraine's orders.

Overnight, Russia launched 24 drones from inside Russia, as well as two Iskander-M ballistic missiles from Voronezh and Kursk oblasts, Ukraine’s Air Force reported.