Coalition Fracture Exploitation / 联盟裂缝利用
Coalition fracture exploitation / 联盟裂缝利用 is the battlefield pattern 《资治通鉴·周纪》67丨战国“灭霸”白起的军事才能究竟如何 extracts from 白起 at 伊阙之战. A coalition can look large in aggregate while being weak in action because the allied states do not want to spend their own troops for a shared goal.
The episode distinguishes this from simple courage or a lucky attack. Bai Qi studies terrain, enemy incentives, and the coalition’s internal distrust; then he avoids the strongest front, attacks weaker units first, maneuvers behind the allied army, and concentrates Qin force against separated targets. The tactic converts political non-cohesion into battlefield destruction.
The concept is adjacent to 联盟自保失灵, but operates at a different level. Coalition self-preservation explains why states fail to press a shared campaign; coalition fracture exploitation explains how an opposing commander can actively turn that failure into operational sequence and annihilation.
Key Claims
- Allied army size can hide weak commitment and poor coordination.
- Coalition members that each want another member to pay the first cost create exploitable seams in command and morale.
- Terrain and rear-position analysis matter because they turn political disunity into concrete attack routes.
- “Avoid the strong, strike the weak” becomes decisive when followed by concentration against separated coalition units.
- The pattern helps explain why Qin’s institutional and strategic advantages become battlefield results only through commanders who can diagnose the enemy’s internal structure.