concept Updated 2026-08-19 Tags: Strategy, Diplomacy, Warfare, Warring-States, Pre-Qin-History

Delayed Rescue Statecraft / 晚救权谋

Delayed rescue statecraft / 晚救权谋 is the intervention-timing pattern 《资治通鉴·周纪》19丨马陵之战 attributes to 孙膑 in the run-up to 马陵之战. 韩国 asks 齐国 for help after 魏国 attacks, but Sun Bin argues that helping too early would make Qi bear Wei’s full pressure while Han remains relatively unspent.

The strategy turns rescue into leverage. Qi privately reassures Han, lets Han and Wei exhaust each other, and then intervenes when Han is desperate and Wei is tired. The source treats this as morally harsh but strategically coherent: Qi gains gratitude, reputation, and better battlefield conditions at the same time.

《资治通鉴·周纪》20丨庞涓死此树下 adds the outcome of that timing choice. Once Qi enters, Sun Bin combines the delayed intervention with 减灶诱敌 and forced-march risk, leading to 庞涓’s death, Wei’s defeat, and 太子申’s capture.

Key Claims

  • Rescue timing can be as important as the decision to rescue.
  • Early intervention may transfer the ally’s burden onto the rescuer.
  • Delayed intervention can convert another state’s desperation into political dependence.
  • The pattern depends on credible private commitment; Han keeps fighting because Qi has secretly promised eventual help.
  • The strategy has an ethical edge: the ally is helped, but only after being deliberately left in danger.

Connections