War games
..."The military and naval origins of the [First World] War" but it was clearly actually made during the war itself, between 1914 and the end of 1915, as French is one of the field marshals shown in the centre, alongside Kitchener; presumably Haig would have been shown after 1915. Not that either French or Kitchener rose through the ranks to field marshal (who had by then? Wully Robertson didn't until after the war) of course, but it's interesting t...