Methodical preparation of small attacks, with immediate consolidation was required and great economy of men and equipment necessary, to conduct another general attack in mid-September. The French XX Corps, was to be assisted by the capture of Falfemont Farm, Leuze Wood, Guillemont and Ginchy. Rawlinson altered the XIII Corps boundary, to concentrate it against Guillemont and the 55th and 2nd Divisions sapped forward, to reduce the width of no man's land, which brought the British front line to Arrow Head Copse and about half-way from Trônes Wood to Guillemont.