漳水之盟 / Zhangshui Alliance

漳水之盟 / Zhangshui Alliance appears in 《资治通鉴·周纪》17丨韩昭侯和申不害 as the 351 BCE reconciliation between 魏国 and 赵国. The episode emphasizes that this peace was harder than Wei-Qi accommodation because Wei had previously taken 邯郸, Zhao’s capital.

The source reads 魏惠王’s return of Handan as the credibility move that makes the alliance possible. The deeper cause is 秦国东进压力: Qin’s attacks on Wei and Zhao make former enemies more willing to reduce their mutual exposure.

Connections

• 魏国 and 赵国 - parties to the alliance.
• 魏惠王 - ruler whose return of Handan signals sincerity.
• 邯郸 - restored Zhao capital and core trust issue.
• 秦国 and Qin Eastward Pressure / 秦国东进压力 - external pressure behind the reconciliation.
• Early Warring States Interstate War / 战国早期诸侯混战 - broader conflict and alliance-churn frame.