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entity Updated 2026-08-23 Tags: Battle, Chu-Han, War, Liu-Bang, Xiang-Yu, Han-Xin

垓下之战 / Battle of Gaixia

垓下之战 / Battle of Gaixia enters the wiki through Hanji 167 as the opening of 项羽’s final battle. The episode follows 鸿沟议和 and 刘邦’s renewed pursuit, but it does not treat Gaixia as a simple continuation of one army chasing another; it arrives only after alliance bargaining and Huainan-side collapse reshape the battlefield.

The immediate setup is incentive failure. Liu Bang summons 韩信 and 彭越, but they do not arrive at the appointed time. 张良 explains that they lack sufficiently concrete territorial reward, so Liu Bang must promise land before expecting them to fight decisively. The battle therefore begins as a political-military assembly problem under 许地会师式动员, not merely as a tactical deployment.

The pressure also comes through 刘贾 and 周殷. Liu Jia crosses the Huai River and surrounds Shouchun, Zhou Yin surrenders and helps pacify Huainan, and 英布 is drawn northward into the final anti-Chu field. This gives Gaixia a side-and-rear collapse layer: Xiang Yu is not only outnumbered by Liu Bang’s front but increasingly deprived of dependable surrounding support.

Hanji 167 part 1’s endpoint preserves Xiang Yu’s battlefield expectation. At Gaixia, he still commands a disciplined core of Chu troops and expects a broad plain to favor his open-field shock style, recalling the victories at 巨鹿之战 and 彭城之战. The transcript stops after his initial rush, when the allied forces surprisingly do not fall into disorder.

Hanji 167 part 2 completes the battlefield account by shifting the real command opponent from Liu Bang to 韩信. Liu Bang’s decisive act is to yield coalition command, while Han Xin turns the sixty-ten-thousand army into three lines: his own first line with 孔熙 and 陈贺 on the wings, Liu Bang’s second line, and the 周勃 / 柴武 third line.

The tactical result is 纵深分层防御. Xiang Yu breaks through Han Xin’s first line and Liu Bang’s second line, but neither breakthrough produces the coalition panic he needs. Han Xin’s controlled retreat and wing pressure make the Chu advance consume strength while earlier Han lines remain able to converge again.

By the time Xiang Yu reaches the third line, the Chu army can no longer reproduce the Pengcheng pattern of shock-driven command collapse. Zhou Bo and Chai Wu’s line holds, Han forces close from multiple directions, and Xiang Yu falls back into a starving camp after catastrophic losses. The source therefore turns Gaixia into the battlefield where Han Xin solves the problem Liu Bang failed to solve at Pengcheng: how to make a very large allied force stay coherent under Xiang Yu’s direct attack.

Hanji 168 part 1 extends Gaixia from battlefield defeat into the night collapse and final escape. 四面楚歌 makes Xiang Yu hear the surrounding Han army as if Chu itself has already turned against him; 《垓下歌》 makes the commander’s despair visible; and 虞姬’s suicide resolves the personal dilemma that Xiang Yu cannot solve in words.

The same episode then follows Xiang Yu burying Yu Ji, abandoning most of the remaining army, and breaking out with eight hundred men. 灌婴 leads five thousand cavalry in pursuit, Xiang Yu is reduced to a little over one hundred men after crossing the Huai River, and a farmer’s false directions near Yinling push the story toward the source’s final interpretation: Xiang Yu’s “Heaven will destroy me” language should be read against the loss of people-support.

Hanji 168 part 2 completes the post-Gaixia route. At 东城, Xiang Yu’s remaining twenty-eight riders still break pursuit and show extraordinary tactical force; at 乌江, the 乌江亭长 offers a crossing back to Jiangdong. The episode’s final battle reading is therefore not that Xiang Yu lacked courage, but that courage had become disconnected from self-correction, morale recovery, and strategic rebuilding.

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