April 24 was the last day on which our Brigade awaited and prepared to meet a Boche attack of the first magnitude. But it was not until the month of July that any of us conceived, or dared to believe in, the possibility of his mighty armies being forced upon the defensive again. During May and June we accepted it that our role would be to stick it out until the Americans came along _en masse_ in 1919. The swift and glorious reversal of things from August onwards surprised no one more than the actual fighting units of the British armies. II. THE RED-ROOFED HOUSE "We're doing an attack to-morrow morning," said the colonel, returning about tea-time from a visit to the C.R.A. "We are under the --th Divisional Artillery while we're up here, and we shall get the orders from them. You'd better let the batteries know. Don't say anything over the wire, of course.... Any papers for me to see?" he added, pulling out his leather cigarette case. I handed him the gun and personnel returns, showing how many men and guns the Brigade had in action; and the daily ammunition reports that in collated form find their way from Divisional Artillery to Corps, and from Corps to Army, and play their part in informing the strategic minds at the back of the Front of the ebb and flow of fighting activity all along the vast battle line, enabling them to shape their plans accordingly. "D Battery are a bit low in smoke shells," remarked the colonel. "You'd better warn Major Veasey that he'll want some for to-morrow morning." "B Battery ... two casualties ... how was that?" he continued, before signing another paper. "About an hour ago, sir. Their mess cart was coming up, and got shelled half a mile from the battery position. Two of the servants were wounded." "I've never seen an order worded quite like that," he smiled, when I showed him a typed communication just arrived from the Divisional Artillery, under whose orders we were now acting. It gave the map co-ordinates of the stretch of front our guns were to fire upon in response to S.O.S. calls. The passage the colonel referred to began-- "By kind consent of the colonel of the --th French Artillery, the S.O.S. barrage on our front will be strengthened as follows:..." "Sounds as if the French colonel were lending his batteries like a regimental band at a Bank Holiday sports meeting, sir," I ventured. "Yes, we are learning to conduct war in the grand manner," smiled the colonel, opening his copy of 'The Times.'