Commander-in-Chief Oleksandr Syrskyi on Feb. 3 named Ukraine's operation in Russia's Kursk Oblast and strikes against military facilities deep inside Russian territory as Kyiv's key battlefield priorities.

The 52-year-old was on his way back to the frontlines and is believed to have died instantly along with another officer.

Videos from the Ukrainian unit tasked with interacting with the Russians in Kursk give a unique window into the 6-month-old occupation.