कुपितमूलभिन्नगर्भयोः कुपितमूलं प्रशमितकोपं सामादिभिर्युध्येत न भिन्नगर्भमन्योन्यस्माद्भिन्नम् ॥ कZ_०८.५.१० ॥
kupitamūlabhinnagarbhayoḥ kupitamūlaṃ praśamitakopaṃ sāmādibhir yudhyeta na bhinnagarbham anyonyasmād bhinnam
Between (an enemy) whose root-base is angered and (one) whose inner cohesion is split, one should fight the “angered-at-the-root” opponent—after first pacifying his wrath through conciliation and allied measures; one should not fight the internally split opponent, for his parts are separated from one another (and will collapse on their own).
Because internal fragmentation makes the enemy self-weakening; direct battle is unnecessary when collapse or defection can be induced.
Stabilize the opponent’s emotional volatility via diplomacy/inducements so the ruler controls escalation and chooses timing.