From a New York Times story by Michael Schwirtz headlined “They Are Russians Fighting Against Their Homeland. Here’s Why.”:

The soldier knelt in the snow, aimed a rocket launcher and fired in the direction of Russian troops positioned about a mile away. He was set up at a Ukrainian firing position, and looked just like the other Ukrainian troops fighting south of the city of Bakhmut in one of the most brutal theaters of the war.

But he and his comrades are not Ukrainian. They are soldiers in a Ukrainian military unit made up entirely of Russians who are fighting and killing their own countrymen.