. ▁At ▁night fall ▁the ▁ 2 / 1 0 th ▁Lond ons ▁managed ▁to ▁clear ▁Ch ip illy ▁village ▁and ▁dis l odge ▁the ▁def enders ▁from ▁the ▁r idge . ▁ ▁The ▁batt alion ▁had ▁lost ▁another ▁ 3 0 0 ▁men ▁over ▁the ▁two - day ▁battle , ▁and ▁at ▁one ▁point ▁had ▁five ▁acting ▁CO s ▁in ▁ 1 2 ▁hours . ▁Between ▁ 1 0 ▁and ▁ 2 2 ▁August ▁the ▁batt alion ▁was ▁brought ▁up ▁to ▁strength ▁with ▁a ▁large ▁draft ▁of ▁ 2 0 ▁officers ▁( from ▁various ▁London ▁batt al ions ) ▁and ▁ 4 8 0 ▁other ▁ranks , ▁mainly ▁season ed ▁soldiers ▁from ▁ 1 4 th ▁( Light ) ▁Division . ▁ ▁B apa ume ▁The ▁Second ▁Battle ▁of ▁B apa ume ▁opened ▁on ▁ 2 2 ▁August ▁and ▁was ▁continued ▁with ▁a ▁night ▁attack ▁on ▁ 2 3 / 2 4 ▁August , ▁in ▁which ▁ 1 7 3 rd ▁B de ▁supported ▁ 1 7 5 th ▁B de ▁and ▁ 4 7 th ▁Division . ▁A ▁dawn ▁attack ▁on ▁ 2 5 ▁August ▁found ▁the ▁German ▁positions ▁empty , ▁and ▁ 2 / 4 th ▁Lond ons ▁was ▁sent ▁forward ▁with ▁a ▁Tro op ▁of ▁the ▁North umber land ▁H uss ars ▁and ▁sections ▁of ▁the ▁Royal ▁Field ▁Art illery ▁and ▁Machine ▁Gun ▁Corps ▁as ▁an ▁advanced ▁guard ▁to ▁re - est ab lish ▁contact ▁with ▁the ▁enemy . ▁In ▁these ▁unusual ▁conditions ▁of ▁open ▁war fare , ▁the