At this moment, the Kushan army actually had no other options: either the rear army followed the vanguard, providing more support until the Han army's defenses were shattered, or the rear army abandoned the vanguard and no longer followed up.
The problem was that earlier, the Kushan thought they could seize the opportunity to break the Han army's central and rear armies, fragmenting the entire Han army into small pieces, but in reality, this plan backfired. They overestimated their abilities; the central army used as bait was mostly fake troops. The Kushan easily pierced through the central army, but when they charged into the rear, they were stopped.
Such a completely unscientific situation left the Kushan vanguard, which originally thought it could ride the momentum of crushing the central army to break through the Han rear in one go, directly receiving a head-on blow, stunning the previously unstoppable vanguard.
