Gunners rubbed their eyes at the vision as they saw the horsemen pass and infantry stood amazed to see them crossing trenches, Briton and Indian on their way up the slope to the Ridge. How they passed the crest without being decimated by a curtain of fire would be a mystery if there were any mysteries in this war, where everything seems to be worked out like geometry or chemical formulae. The German artillery being busy withdrawing heavy guns and the other guns preoccupied after the startling results of an attack not down on the calendar for that day did not have time to "get on" the cavalry when they were registered on different targets--which is suggestive of what might come if the line were cleft over a broad front. A steel band is strong until it breaks, which may be in many pieces. "Did you see the charge?" you ask. No, nor even the ride up the slope, being busy elsewhere and not knowing that the charge was going to take place. I could only seek out the two squadrons who participated in the "incident," as the staff called it, after it was over. Incident is the right word for a military sense of proportion. When the public in England and abroad heard that the cavalry were "in" they might expect to hear next day that the Anglo-French Armies were in full pursuit of the broken German Armies to the Rhine, when no such outcome could be in the immediate program unless German numbers were cut in two or the Prussian turned Quaker. An incident! Yes, but something to give a gallop to the pen of the writer after the monotony of gunfire and bombing. I was never more eager to hear an account of any action than of this charge--a cavalry charge, a charge of cavalry, if you please, on the Western front in July, 1916. In one of the valleys back of the front out of sight of the battle there were tired, tethered horses with a knowing look in their eyes, it seemed to me, and a kind of superior manner toward the sleek, fresh horses which had not had the luck to "go in"; and cavalrymen were lying under their shelters fast asleep, their clothing and accoutrements showing the unmistakable signs of action. We heard from their officers the story of both the Dragoon Guards and the Deccan Horse (Indian) who had known what it was to ride down a German in the open.