तस्मान्मित्रमरिमित्रं मित्रमित्रमरिमित्रमित्रं चानन्तर्येण भूमीनां प्रसज्यन्ते पुरस्तात्पश्चात्पार्ष्णिग्राह आक्रन्दः पार्ष्णिग्राहासार आक्रन्दासारः ॥ कZ_०६.२.१८ ॥
tasmān mitram arimitraṃ mitramitram arimitramitraṃ cānantaryeṇa bhūmīnāṃ prasajyante purastāt paścāt pārṣṇigrāha ākrandaḥ pārṣṇigrāhāsāra ākrandāsāraḥ
Therefore, in the sequence of contiguous territories, there arise: the ally, the ally of the enemy, the ally’s ally, and the ally of the enemy’s ally. In front and behind are (respectively) the rear-seizer (pārṣṇigrāha) and the distress-caller/raider (ākranda), as well as the supporter of the rear-seizer and the supporter of the distress-caller.
A template to map not just immediate neighbors but second- and third-order relationships, including rear threats and their backers.
Because expansion creates vulnerability to rear attacks; Kauṭilya institutionalizes the need to secure the rear while acting on the front.