Gan Ning successfully seized all of Lujiang. The State of Wei forces in Huainan were forced to concentrate in the two cities of Hefei: Xiahou Ru stationed troops in Hefei to watch Lu Xun, while Xiahou Shang stationed troops in Hefei New City to watch Gan Ning.
During the struggle for Lujiang, Gan Ning's forces displayed formidable prowess in land warfare. Xiahou Shang therefore paid particular attention to Gan Ning and instructed Xiahou Ru to assist in defending New City, while dismissing Lu Xun's old Jiangdong troops entirely.
The tale of eight hundred men breaking one hundred thousand had long circulated throughout Huainan. Xiahou Ru's Mount Tai troops had clashed with Eastern Wu forces many times, forming the ingrained belief that Jiangdong soldiers were weak in land combat.
Once the strategy for a full-scale assault on Huainan began, the Trap-Breaking Army, which had long remained out of sight, entered the battlefield by water. Neither Xiahou Ru, their commanding general, nor the Mount Tai troops under him had ever witnessed the Trap-Breaking Army's might, and they mistakenly thought Lu Xun had summoned them merely to put on airs.
The Mount Tai troops, once commanded by Zang Ba, had seen Gao Shun's Xianzhen Battalion during Lu Bu's occupation of Xu Province. Unfortunately, more than twenty years had passed. Whether the Mount Tai troops or the Xianzhen Battalion, whether their commander was Gao Shun or Zang Ba, both armies had long completed their generational turnover. Xiahou Ru suffered from muddled intelligence.
Seeing that the "Jiangdong soldiers" had actually taken the initiative to disembark and fight on land, Xiahou Ru gladly left the city to meet them head-on. In the end, driven forward by the Trap-Breaking Army, Eastern Wu's old troops crushed the Mount Tai soldiers in a single battle and seized Hefei.
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