Reinforced Cause_change_of_strength by the XIV Reserve Corps the Germans on the north side of the Somme attacked Attack again and took Conquering Mametz on 29 September .

Reinforced Cause_change_of_strength by paratroopers , the French and their Vietnamese allies tightened Cause_change_of_strength a net around the defending Viet Minh , but delays Change_event_time in the movement of French forces left gaps through which most of the Viet Minh guerillas , and many of the arms caches the operation was expected to seize , escaped .