Context:

Tom mentions this was the first book he read about WWI as a child and still holds a candle for it, though he acknowledges historians of the First World War despise it and consider it basically 'a brilliant work of fiction.'

Context:

Referenced multiple times throughout the episode. Dominic cites Max Hastings' account from this book about the Battle of Vieton, and later quotes Hastings calling Sir John French 'a poltroon' and describing Asquith's handling of the war.

Context:

Referenced when discussing the terrible treatment of horses during WWI, noting that anyone who has read the book (or seen the drama) knows it's based on horrendous cruelty to horses.