sentences:  As a diversion the 9th MAB would conduct a feint amphibious assault against the mouth of the Cua Viet River.On the morning of 27 June the 9th MAB launched their amphibious feint against the Cua Viet, reversing course when 7km from shore.On 28 June the South Vietnamese advance began and quickly ran into strong PAVN resistance and helicopter assaults were launched to land troops behind PAVN positions.