Strategic Background
The thirteenth year of Jian'an was precisely the moment when the great battle of Chibi was unfolding along the Jingzhou front, with the Wu main force moving north to resist Cao Cao. Taking advantage of this opening, the Shanyue of Danyangjun gathered tens of thousands of households, blocked the mountain roads, and posed a grave threat to the rear security of the Wu regime. Along the Jiangdong Danyang-Huiji-Yuzhang corridor, Shanyue uprisings were a persistent, chronic problem: the terrain was forbidding, tax collection was practically impossible, and rebels who held the mountains and defended themselves could establish a de facto separation from official commandery authority. Sun Quan dispatched He Qi to return and suppress them — the purpose was not simple bandit-clearing, but rather to lock down the rear flank while the main force was on external campaign, and to convert the mountain population into deployable military manpower and registered households. This objective meant the battle had to be resolved quickly and at low cost; otherwise it would drain resources from the main theater.
Deployments
The rebel forces were distributed at three points: Jin Qi with ten thousand households at Anle Mountain, Mao Gan with ten thousand at Wuliao Mountain, and Chen Pu and Zu Shan together with twenty thousand households at Linlishan, forming a mutually reinforcing triangle. Linlishan was the core stronghold, with sheer cliffs of several tens of zhang on all sides; the mountain path admitted only one person at a time, and rebels occupying the heights could hurl down boulders — a direct frontal assault was all but impossible. On the Wu side, He Qi's "army encamped for many days without the officers and men finding a way through" indicates that his initial approach was blockade-and-observation, avoiding rash action while searching for a geometric weak point rather than consuming strength on a frontal assault. This "applying combat-engineer thinking in place of frontal thinking" was the biggest difference between this battle and most generic Shanyue suppression campaigns.
Key Decision Points
He Qi's breakthrough depended on three critical decisions. First, he personally walked the perimeter of the mountain, identified a blind spot in the defenders' field of vision, and found a place where a path could be cut. Second, he secretly recruited troops who combined physical strength with light-footedness, had iron-headed halberds forged, and at night had them creep up the cliff face; afterward, additional troops were hauled up the top of the cliff by means of suspended rope-and-cloth strips. Third, after reaching the summit they did not immediately assault the defenders' main camp but dispersed to all four sides and sounded drums and horns simultaneously, artificially amplifying the impression of force. The defenders' sense of security had originally derived from the "visible" fortress of terrain; the moment the drums and horns sounded from all four sides simultaneously it was utterly stripped away: they could no longer see how many Wu troops had actually reached the summit, nor could they be confident of holding the defiles any longer. This psychological shock was far more decisive than any pure ratio of troop numbers. Pei Songzhi's annotation also cites the Baopuzi with an anecdote about He Qi encountering a "skilled prohibitor" [a practitioner of techniques for binding enemies] and defeating him with a white cudgel; the source value of this account must be discounted, but it reflects later readers' image of He Qi as a man of "long contemplation before action" — thinking through a problem before committing to a solution.
Outcome and Echoes
The battle resulted in seven thousand heads taken, and Jin Qi's and Mao Gan's forces were exterminated. Sun Quan partitioned six counties — Yi, She, Liyang, Xiu'an, Xinding, and others — to establish the new commandery of Xindu, with He Qi as its first Administrator and his seat of government at Shixin. In the short term, Jiangdong successfully stabilized its rear at the moment the main battle at Chibi was at its most critical. In the medium term, the establishment of Xindu commandery was the standard Jiangdong method for handling the Shanyue problem: re-enrolling the post-conquest population into the commandery-county household registration system and bringing mountain resources into the state's fiscal and military manpower pools. This model was applied repeatedly in later Shanyue campaigns led by He Qi, Zhuge Ke, and others, constituting Jiangdong's path of "interior integration" for expansion.
Counterfactual Analysis
Had He Qi chosen prolonged siege, the Linlishan rebels, holding the heights and with relatively strong self-sufficiency, could most likely have held out until after Chibi — leaving no room to maneuver. Had he abandoned Linlishan and attacked Jin Qi and Mao Gan's positions at Anle Mountain and Wuliao Mountain first, he would have pruned the branches while leaving the trunk untouched, and the rebels might have massed into Linlishan to form an even more entrenched core. By contrast, in later large-scale Shanyue campaigns across Jiangdong's history, those that relied solely on numerical superiority while neglecting engineering and psychological warfare almost always paid a cost far exceeding expectations. The paradigm value of He Qi's battle lies in this: terrain cannot be changed, but a defender's dependence on terrain can be simultaneously torn open by "engineering-based surprise strike and psychological amplification." This is the methodological starting point from which the Wu army maintained long-term initiative in dealing with the Shanyue problem.