The trenches', wrote Robert Kee fifty years later, 'were the concentration camps of the First World War'; and though the analogy is what an academic reviewer would call unhistorical, there is something Treblinka-like about almost all accounts of July 1st, about those long docile lines of young men, shoddily uniformed, heavily burdened, numbered about their necks, plodding forward across a featureless landscape to their own extermination inside the barbed wire. Accounts of the Somme produce in readers and audiences much the same emotions as do descriptions of the running of Auschwitz - guilty fascination, incredulity, horror, disgust, pity and anger - and not only from the pacific and tender-hearted; not only from the military historian, on whom, as he recounts the extinction of this brave effort or that, falls an awful lethargy, his typewriter keys tapping leadenly on the paper to drive the lines of print, like the waves of a Kitchener battalioon failing to take its objective, more and more slowly towards the foot of the page; but also from professional soldiers [...] Why did the commanders not do something about it? Why did they let the attack go on? why did they not stop one battalion following in the wake of another to join it in death?