On January 15th they marched from Houtkerke, where they had lived for a fortnight in farm-billets, to similar accommodation at Wormhoudt. The Battalion remained in rest: ‘Company-drill, bayonet-fighting, route-marching, bomb-throwing, etc., have been carried out, and the men appear to have greatly benefited by the change’. On February 2nd came the move to Longeau, and the march through Amiens to Ailly, which preceded, as with other units of the Division, the tours in the trenches north of Authuille and the working-parties of March to May. Lt.-Col. (later, Brig.-General) E. G. St. Aubyn, D.S.O., at that time in Command of the Battalion, was allotted special duties at Corps Headquarters at the end of June, when Major J. Walker took Command. (Major E. P. Chambers had been attached since early in April as Claims Officer to the Division). The Birthday Honours included a D.S.O. for Major R. E. Sugden, two Distinguished Conduct Medals and a Military Medal. At 2 p.m. on the last day of June, the Battalion moved to Senlis, ‘to take part in operations.’ Every unit repeated the same experience: rest and recuperation in January from the severe strain of the trenches on the Yser; a move south-south-west early in February to the hilly country about Amiens; trench-work and trench-warfare in the valleys of the Somme and the Ancre; intensive training in offensive; elaborate, tireless fatigue-duty in all kinds of labour behind the line: railways, tramways, causeways, dressing stations, magazines, water-mains, communication-, assembly- and assault-trenches, mining operations, and so forth; often under enemy fire, with the weather ‘bad, on the whole,’ and ‘the local accommodation totally insufficient,[54]’ and, at last, at the end of June, on the agreed date, ‘to relieve the pressure on Verdun.’ II.—OPERATIONS ON THE SOMME