From ‘Armour of offence’, The Spectator, 5 August 1916: The soldier must never forget that it is his business to stand upon the offensive, not upon the defensive, and that for the offensive the power of rapid movement is essential. That is why, as the Germans are finding, and as the Austrians certainly found in Poland, you may make your trenches too defensible, too deep, too narrow, and generally too good.