NARRATIVE. 18 May On the morning of 18 May a reconnaissance of the Right brigade sector and the land over the tunnel immediately South of it, by the G.O.C. led him to report that he was particularly anxious about this flank, At 1500 hours O.C. R.E. (G.H.Q.) called at Divisional H.Q. and reported that his sappers, preparing bridges for demolition, North of PERONNE, had been fired on by enemy tanks. This report was telephoned to G.H.Q. at ARRAS and the Division was ordered to refused its Right flank. This was done by withdrawing the 70 BRIGADE into villages between the CAMBRAI - ARRAS road and the railway running from MARQUOIN and BOYELLES (N 48). The Right brigade was ordered to make tank-proof localities in these villages. On the Left brigade front 69th BRIGADE were ordered to make similar dispositions in villages behind their front.