परस्परद्वेषवैरभूमिहरणशङ्कितमतोऽन्यतमेन भेदयेत् ॥ कZ_०९.६.२६ ॥
paraspara-dveṣa-vaira-bhūmiharaṇa-śaṅkitam ato 'nyatamena bhedayet
If they mutually hate or are hostile, or are suspicious about land-grabbing/territorial seizure, one should split them by using any one of these grounds as a wedge.
Any salient grievance—hatred, enmity, or fear of dispossession—especially territorial/land issues that quickly polarize groups.