तथैव भूम्येकान्तरा मित्रप्रकृतिः ॥ कZ_०६.२.१५ ॥
tathaiva bhūmyekāntarā mitraprakṛtiḥ
Likewise, the territory separated by one intervening land (the neighbor’s neighbor) constitutes the ally-element (mitra-prakṛti).
Both have a shared incentive to counterbalance the immediate neighbor (the ari), making cooperation instrumentally likely.
As a baseline for diplomatic mapping—identify likely partners for balancing and for creating strategic depth beyond the frontier.