1 Season
5 Episode
The Great Underground War - Season 1 Episode 5 The Secret of the Somme (2014)
An exploration of newly discovered fortresses, dugouts, and bunkers tells the story of the innovative German engineering that made defenses resistant to massive bombardments.
- Country : United Kingdom
- Genre : Documentary, War & Politics
- Studio : Fact TV UK
- Director : Andrea Vogt, Paul Russell
- Cast : Andy Hawkins, Julia Richardson
