▁the ▁H inden burg ▁Line ▁at ▁Bul le court . ▁The ▁attack ers ▁were ▁dis posed ▁as : ▁ ▁Right : ▁ 1 ▁company ▁ 2 / 3 rd ▁Lond ons ▁ ▁Right ▁Centre : ▁ 1 ▁ 1 () ▁companies ▁ 2 / 1 st ▁Lond ons ▁ ▁Left ▁centre : ▁ 1 ▁ 1 () ▁companies ▁ 2 / 2 nd ▁Lond ons ▁ ▁Left : ▁ 1 ▁company ▁ 2 / 4 th ▁Lond ons ▁ ▁The ▁attack ▁went ▁in ▁with ▁an ▁extraordinary ▁weight ▁of ▁art illery ▁support : ▁the ▁divis ional ▁art iller ies ▁of ▁ 5 8 th ▁and ▁two ▁other ▁divisions , ▁the ▁corps ▁art illery , ▁and ▁the ▁three ▁brig ade ▁machine - gun ▁companies ▁of ▁ 5 8 th ▁Division . ▁Zero ▁hour ▁was ▁at ▁ 0 2 . 5 0 , ▁and ▁t apes ▁and ▁du ck board ▁tren ch ▁brid ges ▁were ▁laid ▁after ▁dark ▁on ▁ 1 4 ▁June ▁to ▁help ▁the ▁troops ▁maintain ▁direction ▁in ▁the ▁ma ze ▁of ▁tren ches . ▁When ▁the ▁bar rage ▁opened ▁at ▁ 0 2 . 5 0 ▁the ▁troops ▁followed ▁it ▁closely ▁and ▁reached ▁their ▁first ▁objective ▁with ▁little ▁loss ▁but ▁the ▁German ▁pill box es ▁( ▁M eb us ) ▁caused ▁difficulties , ▁while ▁on ▁the ▁left ▁the ▁attack ers ▁had ▁over run ▁their ▁objective ▁and ▁pushed ▁too ▁far ▁for wards ▁into ▁their ▁standing ▁bar rage . ▁The ▁brig ade ▁attacked ▁again ▁the ▁following ▁night ▁to ▁complete ▁the ▁work , ▁using ▁more ▁companies