In Giap's treatment, Giap's writing about this... it appears that he was well ready- in Dien Bien Phu, he was ready- ifhe had chosen to assault and did not- some eight weeks before the final movement took place.
Nas memorias de Giap, onde escribe sobre isto dise que el estaba preparado en Dien Bien Phu e decidira o asalto e non fixo nada ata 8 semanas antes do movemento definitivo da toma do lugar.