sentences:  Numerous German counterattacks slowed the advance down even more, often taking ground back which had been just captured in a bloody fight.In an act of desperation, Collins moved in virtually all of his available artillery to blast a way for the 1st Division on 21 November.With the Allied advance flagging already in the first phase of the offensive, CCA of the 3rd Armored Division was assigned to the northern part of the 1st Division's left flank.