for ced ▁the ▁VII ▁Corps ▁and ▁gradually ▁forced ▁the ▁British ▁II ▁Corps ▁to ▁a ▁halt . ▁On ▁ 1 9 ▁October , ▁parties ▁of ▁British ▁inf antry ▁and ▁French ▁caval ry ▁captured ▁the ▁village ▁of ▁Le ▁P illy , ▁which ▁later ▁was ▁re capt ured ▁by ▁the ▁Germ ans . ▁The ▁fresh ▁German ▁ 1 3 th ▁and ▁ 1 4 th ▁divisions ▁arrived ▁and ▁counter - att ack ed ▁the ▁II ▁Corps ▁front . ▁By ▁ 2 1 ▁October , ▁II ▁Corps ▁was ▁ordered ▁to ▁dig ▁in ▁from ▁the ▁canal ▁near ▁Given chy , ▁to ▁Vi ol aines , ▁Il lies , ▁Her lies ▁and ▁R iez , ▁while ▁off ensive ▁operations ▁continued ▁to ▁the ▁north . ▁The ▁L ah ore ▁Division ▁of ▁the ▁Indian ▁Corps ▁arrived ▁and ▁the ▁British ▁rep uls ed ▁German ▁attacks ▁until ▁early ▁November , ▁when ▁both ▁sides ▁concentr ated ▁their ▁resources ▁on ▁the ▁First ▁Battle ▁of ▁Y pres ▁and ▁the ▁battle ▁at ▁La ▁Bass ée ▁ended . ▁ ▁Battle ▁of ▁Mess ines , ▁ 1 2 ▁October ▁– ▁ 2 ▁November ▁ ▁The ▁III ▁Corps ▁reached ▁St . ▁O mer ▁and ▁Haz eb rou ck ▁from ▁ ▁then ▁advanced ▁east wards ▁towards ▁L ille . ▁The ▁British ▁caval ry ▁advanced ▁and ▁found ▁the ▁Germ ans ▁d ug ▁in ▁on ▁Mont ▁des ▁C ats ▁and ▁at ▁Fl être ▁on ▁the ▁road ▁from ▁Cass el ▁to ▁B aille ul . ▁The ▁ 3 rd ▁Caval ry ▁Brigade ▁attacked ▁Mont ▁des ▁C ats ▁and ▁occupied ▁M t . ▁No ir