ukraine soldier
A Ukrainian soldier fires toward Russian positions outside Bakhmut, Ukraine, on November 8.
  • The average life expectancy of a frontline soldier in eastern Ukraine is four hours, a Marine said.
  • He said fighting was especially deadly in the war-torn city of Bakhmut, dubbed "the meat grinder."
  • Ukraine has resisted Russian advances on the city ahead of the war's anniversary.

The average life expectancy of a frontline soldier in eastern Ukraine is just four hours, a retired US Marine fighting alongside Ukrainian forces in the Donbas region told ABC News.

"It's been pretty bad on the ground, a lot of casualties. The life expectancy is around four hours on the front line," Troy Offenbecker, the American fighter, said.