Ukrainian troops reportedly hit the command post of Russia's 810th Separate Marine Brigade in the town of Lgov in Kursk Oblast overnight on Dec. 25.

On Dec. 20, a Ukrainian strike on enemy forces near Novoivanovka in Russia's Kursk Oblast inflicted heavy losses on North Korean troops, according to Ukraine's military intelligence (HUR). The attack resulted in numerous casualties,

The Russian army has reportedly suffered a major setback after a Ukrainian missile strike destroyed a key military command post in the city of Kursk, killing 17 marines.

The devastating precision HIMARS attack killed a number of senior officers, including Lieutenant Colonel Salim Pashtov.