So let me only remind you that General Horne led the artillery at Mons; that he has commanded the First Army since September, 1916; that, in conjunction with Sir Julian Byng, he carried the Vimy Ridge in 1917, and held the left at Arras in 1918; and, finally, that he was the northernmost of the three Army Commanders who stormed the Hindenburg line last September.
It was in his study and listening to the explanations he gave me, so clearly and kindly, of the Staff maps that lay before us, that I first realised with anything like sufficient sharpness the meaning of those words we have all repeated so often without understanding them--"_the capture of the Hindenburg line_." What was the Hindenburg line?
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