Australian ambulance men carrying soldiers suffering from Trench Foot at Bernafay, northern France, during World War One. Around 75,000 British soldiers suffered from the condition during WW1.

It might not sound like much to write home about, but the 21-year-old -- Lawrence Enderson Grimshaw -- happened to be a soldier stationed in the trenches during World War I. One century on ...

The entrance is a wet hole in the earth little bigger than an animal burrow, obscured by thorny brush in a secluded wood in northeastern France ... sit patiently in a trench as they anticipate ...