विभवो यावदङ्गानां चतुर्णां सदृशो भवेत् ॥ कZ_१०.५.५७च्द् ॥
vibhavo yāvad aṅgānāṃ caturṇāṃ sadṛśo bhavet
資源の許す限り、軍の四部(四兵種)の戦力は均衡するよう比例して保つべきである。
A bounded-optimization rule: balance is ideal, but force design must remain constrained by fiscal and logistical capacity.
Overweighting one arm creates exploitable vulnerabilities; proportionality supports flexibility across terrains and enemy tactics.