 From 6 to 25 November the operation became a large-scale search and destroy operation as II Field Force threw battalion after battalion into the jungle northwest of Saigon.When DePuy took control of the operation on 4 November, he had only his 1st Division command post and a battalion, which he airlifted to Dầu Tiếng from his Dĩ An Base Camp base camp that night.Over the next two days two of his brigades, the 2nd and 3rd, joined him on the battlefield in rapid succession.