The four brothers of Yang Ge followed the plan, driving over a thousand of Tao's remnant defeated soldiers into the valley and then herding another thousand servant troops into it, blocking both ends of the valley and letting them slaughter each other.
Logically, over a thousand well-trained, fully armed professional Soldiers, even in a state of lost combat spirit and panicked retreat, should not be match for over a thousand disorganized mobs who could barely hold a katana.
However, with seventy-two warriors tilting the scales, constantly disrupting Tao's Soldiers' organized counterattacks and crushing their morale, while continuously creating opportunities for the servant army and boosting their morale...