▁on ▁▁ ▁and ▁ ▁On ▁ 2 8 ▁September ▁German ▁heavy ▁and ▁super - he avy ▁art illery ▁began ▁to ▁bomb ard ▁Belg ian ▁fort ifications ▁around ▁Ant werp . ▁On ▁ 1 ▁October , ▁the ▁Germ ans ▁attacked ▁for ts ▁Sint - K at elij ne - W aver ▁and ▁W alem ▁and ▁the ▁Bos be ek ▁and ▁Dor p vel d ▁red ou b ts , ▁held ▁by ▁the ▁ 5 th ▁Reserve ▁and ▁Marine ▁divisions . ▁By ▁ ▁Fort ▁W alem ▁was ▁sever ely ▁dam aged ▁and ▁Fort ▁L ier ▁was ▁hit ▁by ▁ ▁shell s ▁but ▁Fort ▁Kon ing sh oo ikt , ▁the ▁T all ab ert ▁and ▁Bos be ek ▁red ou b ts ▁were ▁mostly ▁int act ; ▁the ▁interven ing ▁ground ▁between ▁Fort ▁Sint - K at elij ne - W aver ▁and ▁Dor p vel d ▁red ou bt ▁had ▁been ▁captured . ▁Despite ▁rein for cement ▁by ▁the ▁Royal ▁Naval ▁Division ▁from ▁ 2 ▁October , ▁the ▁Germ ans ▁pen etr ated ▁the ▁outer ▁ring ▁of ▁for ts . ▁When ▁the ▁German ▁advance ▁began ▁to ▁compress ▁a ▁cor rid or ▁from ▁the ▁west ▁of ▁the ▁city ▁along ▁the ▁Dutch ▁border ▁to ▁the ▁coast , ▁the ▁Belg ian ▁field ▁army ▁with d rew ▁from ▁Ant werp ▁west wards ▁towards ▁the ▁coast . ▁On ▁ 9 ▁October , ▁the ▁remaining ▁g arrison ▁surrender ed ▁and ▁the ▁Germ ans ▁occupied ▁the ▁city . ▁Some ▁British ▁and ▁Belg ian ▁troops ▁escaped ▁to ▁the ▁Netherlands , ▁where ▁they