Earlier this year I posted about the archaeological work being done at The Glory Hole positions at La Boiselle on the Somme. Work has been continuing to 'dig' this area all summer both above and below ground. Now this video is available to give you a real understanding of the conditions endured by those involved in the underground war on the Somme.http://www.bbc.co.uk/news/uk-19839827
For further reading about this aspect of WW1 try;
Sebastian Faulks - 'Birdsong'
Beneath Flanders Field - here