This documentary has almost no narration or academic talking heads but instead is full of recorded excerpts from interviews done with British veterans in the '70s, looking back on their own experiences in the trenches.
One of the interesting clips mentions that an English unit is warned by their Saxon opponents in the facing trench that their squad is being pulled out to be replaced by a Prussian group, and I think the speaker indicates that the Saxon soldiers didn't like their Prussian colleagues any more than the Brits did.
Does this resonate with any of you?
Maybe I should be posting this in the Germany forums?
It sounds to me like an interesting analogue to the thing we often hear about 'France' being an amalgam of more than a dozen languages and peoples that only started to gain a sense of nationhood under Napoleon's compulsion and was still pretty dis-unified by the outbreak of the Great War. It would make sense that this was no less true in what we now think of as 'Germany', I suppose.