साधयेद्गूढमित्येते दण्डोपनतसंधयः ॥ कZ_०७.३.२६च्द् ॥
sādhayed gūḍham ity ete daṇḍopanatasaṃdhayaḥ
These are treaties brought about by force; one should accomplish them covertly (with concealment and controlled disclosure).
To prevent backlash, coalition-building by the coerced party, and premature disclosure that could trigger resistance or external intervention.