▁establishment ▁of ▁the ▁ 4 th ▁inf antry ▁brig ade ▁and ▁another ▁of ▁field ▁art illery . ▁In ▁ 1 9 5 8 , ▁the ▁heavy ▁art illery ▁was ▁entered , ▁In ▁the ▁same ▁year , ▁the ▁Arm oured ▁Brigade ▁was ▁re organ ized ▁as ▁an ▁Arm oured ▁Division ▁and , ▁in ▁ 1 9 6 1 , ▁it ▁became ▁the ▁Arm our ▁Corps . ▁During ▁this ▁period , ▁the ▁ 4 0 th ▁Arm oured ▁Brigade , ▁ 6 0 th ▁Arm oured ▁Brigade ▁and ▁the ▁Royal ▁Guard ▁Brigade ▁were ▁established . ▁ ▁Batt les ▁– ▁ 1 9 5 6 ▁On ▁ 1 1 ▁September , ▁an ▁Isra eli ▁force ▁in fil tr ated ▁the ▁Jordan ian ▁territ ories ▁in ▁the ▁Al - R ah wa , ▁Heb ron ▁sector , ▁and ▁attacked ▁the ▁police ▁station ▁there . ▁After ▁long ▁cl ash es ▁with ▁a ▁Jordan ian ▁unit ▁from ▁the ▁Des ert ▁Gu ards , ▁the ▁Isra eli ▁force ▁was ▁forced ▁to ▁withdraw ▁rep uls ed . ▁ ▁On ▁ 1 0 ▁October ▁ 1 9 5 6 , ▁an ▁enemy ▁force , ▁estimated ▁at ▁a ▁motor ized ▁inf antry ▁brig ade , ▁supported ▁by ▁medium - range ▁art illery ▁and ▁ 1 0 ▁combat ▁aircraft , ▁attacked ▁the ▁Arab ▁towns ▁of ▁Hub la , ▁Al - N abi ▁Il lias ▁and ▁Az r oun . ▁The ▁assault ing ▁troops ▁fought ▁the ▁Arab ▁leg ion ▁west ▁of ▁Al - N abi ▁Il lias ▁and ▁were ▁forced ▁to ▁withdraw ▁to ▁Q al