▁was ▁joined ▁by ▁a ▁draft ▁of ▁ 5 0 ▁from ▁the ▁ 3 / 4 th ▁Lond ons . ▁ ▁The ▁weak ▁F ero ze p ore ▁Brigade ▁immediately ▁went ▁into ▁hast ily - d ug ▁support ▁lines ▁behind ▁the ▁Me er ut ▁Division ' s ▁attacks ▁on ▁A ub ers ▁R idge ▁( 9 ▁May ) ▁and ▁Fest ub ert ▁( 1 5 / 1 6 ▁May ), ▁where ▁it ▁was ▁sh elled ▁but ▁was ▁not ▁involved ▁in ▁the ▁dis astr ous ▁attacks . ▁The ▁ 1 / 4 th ▁Lond ons ▁also ▁suffered ▁a ▁large ▁number ▁of ▁cas ual ties ▁from ▁sick ness ▁in ▁its ▁shall ow ▁tren ches . ▁After ▁this , ▁the ▁rein for cement ▁problems ▁meant ▁that ▁the ▁Indian ▁Corps ▁was ▁not ▁used ▁off ens ively ▁for ▁the ▁rest ▁of ▁the ▁year , ▁and ▁ 1 / 4 th ▁Lond ons ▁spent ▁the ▁summer ▁of ▁ 1 9 1 5 ▁taking ▁turns ▁in ▁holding ▁sections ▁of ▁tren ch ▁in ▁the ▁La ▁Bass ée ▁Road ▁area ▁and ▁providing ▁working ▁parties ▁while ▁suffering ▁a ▁trick le ▁of ▁cas ual ties . ▁ ▁The ▁L ah ore ▁Division ▁was ▁transferred ▁to ▁Mes op ot am ia ▁in ▁November ▁ 1 9 1 5 , ▁but ▁its ▁British ▁batt al ions ▁remained ▁in ▁France . ▁ 1 / 4 th ▁Lond ons ▁were ▁briefly ▁attached ▁to ▁the ▁ 4 6 th ▁( N orth ▁Mid land ) ▁Division ▁but ▁almost ▁immediately ▁joined ▁ 1 4 0 th ▁( 4 th ▁London )