In Ukraine, killings of surrendering Russians divide an American-led unit

KYIV, Ukraine - Hours after a battle in eastern Ukraine in August, a wounded and unarmed Russian soldier crawled through a nearly destroyed trench, seeking help from his captors, a unit of international volunteers led by an American.

Caspar Grosse, a German medic in that unit, said he saw the soldier plead for medical attention in a mix of broken English and Russian. It was dusk. A team member looked for bandages.

That is when, Grosse said, a fellow soldier hobbled over and fired his weapon into the Russian soldier's torso. He slumped, still breathing. Another soldier fired - "just shot him in the head," Grosse recalled in an interview.

Grosse said he was so upset by the episode that he confronted his commander. He said he spoke to The New York Times after what he regarded as unwarranted killings continued. It is highly unusual for a soldier to speak publicly...