The Trench Warfare Department 1914 - 1915 | Dr John Sneddon

From a channel Lumen includes in full: The Western Front Association, a WWI history charity, posts lectures by historians and readings of first-hand veterans' accounts of the Great War.

A 50-minute video from The Western Front Association's catalogue; the title names its topic.

Video by The Western Front Association, played through YouTube's embedded player.