Photographed in 1917, an endless line of Russian soldiers sit patiently in a trench as they anticipate a German attack. National Geographic Nearby, on one of the tunnel walls, our headlamps ...

I quite like playing in the mud. But I’d probably feel different if I was a soldier in the trenches during World War One. WW1 SOLDIER JACK: Mud? Oh, we know all about mud here on the Western Front.