▁evening ▁ 1 4 ▁March ▁Regiment ▁ 1 6 5 ▁of ▁the ▁ 3 1 2 th ▁took ▁part ▁in ▁the ▁attack ▁on ▁Str ong point ▁Gab ri elle ▁with ▁Regiment ▁ 8 8 ▁of ▁the ▁ 3 0 8 th ▁Division , ▁by ▁ 9 am ▁on ▁ 1 5 ▁March ▁Gab ri elle ▁had ▁been ▁captured ▁by ▁the ▁V iet ▁Min h . ▁On ▁the ▁night ▁of ▁ 3 0 ▁March ▁Reg iments ▁ 1 4 1 ▁and ▁ 2 0 9 ▁over ran ▁Str ong points ▁Domin ique ▁ 2 ▁and ▁ 1 ▁respectively . ▁On ▁the ▁night ▁of ▁ 2 ▁April ▁Regiment ▁ 1 6 5 ▁attacked ▁Str ong point ▁H ug u ette ▁ 6 ▁but ▁was ▁rep uls ed . ▁On ▁ 1 ▁May ▁Regiment ▁ 1 4 1 ▁was ▁task ed ▁with ▁attack ing ▁Str ong point ▁Domin ique ▁ 3 ▁and ▁by ▁dawn ▁on ▁ 2 ▁May ▁had ▁successfully ▁over run ▁the ▁position . ▁For ▁the ▁final ▁assault ▁on ▁ 6 ▁May , ▁the ▁ 3 1 2 th ▁was ▁task ed ▁with ▁attack ing ▁the ▁remaining ▁Eli ane ▁strong points ▁guard ing ▁the ▁brid ges ▁across ▁the ▁Nam ▁You m ▁river . ▁Regiment ▁ 1 6 5 ▁launched ▁three ▁assault s ▁on ▁Eli ane ▁ 1 0 ▁and ▁each ▁time ▁they ▁were ▁rep uls ed ▁and ▁counter - att ack ed . ▁Regiment ▁ 1 4 1 ▁successfully ▁captured ▁Eli ane ▁ 1 2 ▁by ▁m idd ay ▁on ▁ 7 ▁May ▁and ▁Eli