Apart from the Shen Army's Armored Corps attacking Leping finding the situation increasingly challenging, the situation on the beachhead was also turning unfavorable for the Shen Army.
Because the artillery of the 9th Group Army of the Great Tang Empire began to land en masse and make their presence felt: not just the high-powered 155mm caliber howitzers, but also a large number of rocket artillery.
This very thing was the final straw that broke the camel's back for the Shen Army's defenses! After several rocket artillery launched their ammunition onto the Shen Army's defensive lines, they realized they might not hold until reinforcements arrived.
The dense artillery fire instantly blanketed a sector of the Shen Army's defensive positions, it was as if the Tang Army's firepower had suddenly doubled or even tripled.
Facing such firepower, the remaining Shen Army troops really had no choice but to continue to retreat, withdrawing to new defensive lines.