कलत्रगर्भ्यन्तःशल्ययोः कलत्रगर्भि उन्मुच्य कलत्रं युध्येत नान्तःशल्यमन्तरमित्रम् ॥ कZ_०८.५.०९ ॥
kalatragarbhyantaḥśalyayoḥ kalatragarbhi unmucya kalatraṃ yudhyeta nāntaḥśalyam antaramitram
Between one preoccupied with wife and household and one harboring an internal thorn, he should fight the one bound by wife/household after separating him from his wife; he should not fight one with an internal thorn—an ally within (i.e., a hidden internal enemy).
An opponent with an insider/traitor dynamic creates opaque risk; engagements can be manipulated by hidden actors. Prioritize clarity of command-and-control and neutralize insider channels before decisive action.