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.

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 ...

Winter temperatures can drop below zero, and no bonfires are allowed in the trenches because the light would attract drones that could target and hit the soldiers. Even making a phone call ...