Bakhmut: Quentin Sommerville near the frontline in Bakhmut

Join the BBC's Quentin Sommerville near the frontline in Bakhmut. He joins Ukrainian soldiers just 500 metres from Russian forces as they battle for the city in the Donbas region.

It is a city that few say matters strategically, but that tens of thousands have died fighting over. It began more than seven months ago, and is the longest battle of the war so far.

Read more: Russian casualties mount in Bakhmut, but tactics evolve