▁L ika ▁Pro let arian ▁Division , ▁the ▁ 1 st ▁L ika ▁Pro let arian ▁Sho ck ▁Brigade , ▁was ▁deployed ▁to ▁the ▁north ▁along ▁the ▁Una ▁river . ▁The ▁ 2 nd ▁L ika ▁Pro let arian ▁Brigade ▁requested ▁assistance ▁from ▁the ▁ 1 st ▁L ika ▁Pro let arian ▁Sho ck ▁Brigade , ▁but ▁divis ional ▁headquarters ▁ordered ▁it ▁to ▁send ▁rein for c ements ▁to ▁Dr var ▁instead . ▁At ▁ 2 1 : 0 0 , ▁the ▁ 3 rd ▁Battalion ▁of ▁the ▁ 2 nd ▁L ika ▁Pro let arian ▁Brigade ▁launched ▁a ▁successful ▁local ▁counter att ack ▁on ▁the ▁v angu ard ▁of ▁, ▁separ ating ▁it ▁from ▁the ▁main ▁body . ▁Will am ▁then ▁decided ▁to ▁halt ▁the ▁advance ▁and ▁place ▁the ▁remaining ▁units ▁into ▁all - round ▁defence . ▁At ▁ 2 2 : 2 5 , ▁Ald rian ▁ordered ▁him ▁to ▁res ume ▁the ▁attack , ▁but ▁Will am ▁reported ▁that ▁this ▁was ▁impossible ▁due ▁to ▁loss ▁of ▁contact ▁with ▁his ▁own ▁units . ▁ ▁The ▁ 9 2 nd ▁Motor ised ▁Regiment ▁ ▁consisted ▁of ▁two ▁columns , ▁a ▁western ▁column ▁based ▁on ▁the ▁ 9 2 nd ▁Motor ised ▁Regiment , ▁and ▁an ▁eastern ▁column ▁consisting ▁of ▁the ▁ 5 4 th ▁Re con na issance ▁Battalion ▁and ▁ 1 st ▁Home ▁Guard ▁J äger ▁Regiment ▁of ▁the ▁ 2 nd ▁Cro at ian ▁Light ▁Infantry ▁Brigade . ▁The ▁western ▁column ▁advanced ▁sout heast ▁from ▁Bi ha ć , ▁and ▁encountered