ions ▁took ▁on ▁the ▁dual ▁role ▁of ▁home ▁defence ▁and ▁physical ▁condition ing ▁to ▁render ▁men ▁fit ▁for ▁draft ing ▁over se as . ▁The ▁ 1 0 0 th ▁Pro vis ional ▁Battalion ▁officially ▁became ▁the ▁ 2 9 th ▁( City ▁of ▁London ) ▁B n , ▁London ▁Regiment ▁( TF ) ▁on ▁ 1 ▁January ▁ 1 9 1 7 . ▁The ▁batt alion ▁never ▁served ▁over se as , ▁and ▁was ▁dem obil ised ▁early ▁in ▁ 1 9 1 9 . ▁ ▁Training ▁The ▁ 3 / 1 st ▁London ▁Brigade ▁moved ▁to ▁B ury ▁St ▁Edmund s ▁at ▁the ▁end ▁of ▁May , ▁and ▁was ▁soon ▁rec ru ited ▁back ▁to ▁full ▁strength ▁after ▁the ▁departure ▁of ▁the ▁Pro vis ional ▁Battalion . ▁The ▁camp ▁at ▁T atten ham ▁Cor ner , ▁where ▁ 3 / 2 nd ▁B n ▁had ▁been ▁raised , ▁became ▁the ▁Brigade ▁School ▁of ▁Inst ruction ▁for ▁training ▁officers ▁of ▁these ▁new ▁units . ▁At ▁the ▁end ▁of ▁June , ▁the ▁brig ade ▁moved ▁into ▁b illet s ▁in ▁I ps wich , ▁where ▁the ▁ 2 / 1 st ▁London ▁Division ▁was ▁being ▁concentr ated . ▁In ▁August ▁ 1 9 1 5 ▁the ▁division ▁was ▁red es ign ated ▁the ▁ 5 8 th ▁( 2 / 1 st ▁London ) ▁Division , ▁and ▁the ▁ 3 / 1 st ▁London ▁Brigade ▁became ▁the ▁ 1 7 3 rd ▁( 3 / 1 st ▁London ) ▁Brigade ▁alongside ▁the ▁