Originally, Harev's counterattack relied on his own reserve units. Now that the reserves are encircled, he naturally doesn't have enough forces to rescue the reserves trapped in the encirclement.
After a night of attacking, the Dwarf Troops, who consumed significant amounts of carried ammunition, realized they were surrounded and could not receive any reinforcement or supplies.
They hadn't considered the possibility of being encircled when they set out, and naturally, they didn't carry much ammunition. Now that they're facing problems, they have no capital for improvisation.
In modern warfare, a unit surrounded in a field battle, deprived of ammunition resupply, cannot hold out for too long.
The troops of the 2nd Corps attacking the west side of Ben chose to surrender after running out of ammunition and food, handing over their weapons and entering the Tang Army's POW Camp.
