▁pl ato ons . ▁ 5 6 th ▁Division ▁was ▁given ▁the ▁task ▁of ▁making ▁a ▁demonstr ation ▁with ▁dummy ▁t anks ▁and ▁figures ▁on ▁the ▁fl ank ▁of ▁the ▁great ▁tank ▁attack ▁that ▁opened ▁the ▁Battle ▁of ▁Camb rai ▁on ▁ 2 0 ▁November . ▁The ▁demonstr ation ▁succeeded ▁in ▁attract ing ▁German ▁def ensive ▁fire , ▁though ▁ 1 / 4 th ▁Lond ons ▁were ▁in ▁reserve ▁behind ▁the ▁line . ▁The ▁batt alion ▁moved ▁up ▁early ▁on ▁ 2 3 ▁November ▁to ▁rel ieve ▁the ▁London ▁Scottish , ▁who ▁were ▁adv ancing ▁into ▁T ad pole ▁Cop se , ▁and ▁later ▁in ▁the ▁day ▁its ▁companies ▁were ▁drawn ▁into ▁the ▁fighting ▁in ▁the ▁H inden burg ▁Line ▁tren ches ▁with ▁hand ▁and ▁rif le ▁gr en ades ▁and ▁Lewis ▁guns ▁that ▁last ed ▁three ▁days ▁and ▁cost ▁the ▁batt alion ▁ 6 0 ▁cas ual ties ▁before ▁it ▁was ▁rel ieved ▁and ▁went ▁to ▁hold ▁a ▁qui eter ▁sector ▁of ▁the ▁line . ▁ ▁Due ▁to ▁man power ▁short ages ▁the ▁BE F ▁dis band ed ▁one ▁in ▁four ▁of ▁its ▁inf antry ▁batt al ions ▁in ▁February ▁ 1 9 1 8 : ▁the ▁ 1 / 4 th ▁B n ▁received ▁draft s ▁from ▁the ▁dis band ed ▁ 1 / 3 rd ▁Lond ons ▁( 1 6 7 th ▁B de ), ▁ 1 / 9 th ▁Lond ons ▁( Que en ▁Victoria ' s ▁R if les ) ▁( 1 6 9 th ▁( 3 rd