Its success inspired Hanoi to try for an expanded but still limited , offensive to improve its bargaining position with Saigon .
In December 1974 the first phase of a limited PAVN offensive in South Vietnam began .
PAVN 's success inspired Hanoi to try for an expanded but still limited , offensive to improve its bargaining position with Saigon .
In December 1974 the first phase of a limited PAVN offensive in South Vietnam began .