《资治通鉴·汉纪》156｜兵仙韩信的封神之战（1）

Summary

This 芮淇讲透资治通鉴 episode opens the 韩信 versus Zhao campaign after the West Wei victory in Hanji 155-2. It frames the coming “背水一战” through unfavorable preconditions: Han Xin and 张耳 must pass through 井陉口 with a mixed, supply-constrained army, while 赵歇 and 陈馀 hold terrain and numerical advantage. The central decision is 李左车’s rejected proposal to cut Han supply lines while Zhao refuses battle from fortified positions.

Key Claims

• In the tenth month of Han Gaozu’s third year, 204 BCE, Han Xin and Zhang Er lead several tens of thousands east against restored 赵国.
• Zhao Xie and Chen Yu prepare at Jingxing with a claimed 200,000 troops, intending to strike when the Han army exits the pass.
• Jingxing is treated as a severe military chokepoint: the road is narrow, extended, difficult for supply, and suitable for ambush.
• Han Xin stops thirty li from the eastern mouth of Jingxing, lets the troops eat and rest, then moves secretly at midnight with flags lowered and drums silent.
• Li Zuoche diagnoses Han’s soft point as logistics: Han Xin and Zhang Er are far from their base, their grain must travel a long route, and the pass will stretch the marching column.
• Li Zuoche asks for 30,000 men to move by side paths and cut the Han supply line, while Chen Yu entrenches and refuses battle; he expects Han Xin and Zhang Er to be trapped within ten days.
• The source treats Li Zuoche’s plan as feasible, partly because Jingxing had already been hard to break in an earlier Qin-Zhao setting.
• Chen Yu rejects the plan by invoking a “righteous army” posture and refusing deception or stratagem, while also fearing that avoiding direct attack would make other lords see Zhao as timid.
• The episode supplements 《资治通鉴》 with 《史记》’s fuller wording around Chen Yu’s “义兵不用诈谋奇计” stance, making this a source-comparison case.
• The transcript stops after Zhao troops see Han red flags in their camp, so the full backwater battle sequence remains source-scoped to later material.

Key Quotes

“背水一战” - the idiom used to introduce the campaign.

“义兵不用诈谋奇计” - the Shiji wording the episode uses to explain Chen Yu’s stated refusal of stratagem.

“战马不能并排而行” - the source’s description of Jingxing’s narrow road condition.

Connections

• 韩信, 张耳, 陈馀, 赵歇, and 赵国 - direct campaign actors and target polity.
• 李左车, 李牧, and 井陉口 - Zhao-side adviser, family military lineage, and terrain at the center of the rejected plan.
• 太行道, 交通线切割, and 战场围困与断粮 - geography and logistics pattern behind Li Zuoche’s proposal.
• 战场信息控制 - Han Xin’s quiet night movement and the source-scoped red-flag psychological turn.
• 道德化拒诈指挥 and 儒家军事理想的限度 - Chen Yu’s moralized rejection of usable tactics.
• 史书删节与责任归属转移, 《史记》, and 《资治通鉴》 - fuller Shiji language versus the chronicle’s compressed account.

Contradictions

• No settled contradiction is recorded. This source continues Hanji 155-2’s Zhao-campaign setup; because the transcript stops before the complete “背水一战” narration, the flag-in-camp scene is kept source-scoped rather than treated as the full battle result.