At 7 : 30 am they heard the first rumbles of Pakistani tanks , which straddled the road an hour and a half later .
4 Grenadiers arrived at midnight on 7 -- 8 September , and had dug 3 - foot ( 0.91 m ) trenches by dawn .
At 7 : 30 am Grenadiers heard the first rumbles of Pakistani tanks , which straddled the road an hour and a half later .
4 Grenadiers arrived at midnight on 7 -- 8 September , and had dug 3 - foot ( 0.91 m ) trenches by dawn .