ताः पञ्चभिरमात्यजनपददुर्गकोशदण्डप्रकृतिभिरेकैकशः सम्युक्ता मण्डलमष्टादशकं भवति ॥ कZ_०६.२.२५ ॥
tāḥ pañcabhir amātyajanapadadurgakośadaṇḍaprakṛtibhir ekaikaśaḥ samyuktā maṇḍalam aṣṭādaśakaṃ bhavati
When each of those (three political units) is paired, one by one, with the five state-constituents—ministers, territory/population, fort, treasury, and armed force—the mandala becomes eighteenfold.
It forces systematic comparison: evaluate not only who is ally/enemy, but also the quality of each actor’s ministers, territory, forts, finances, and force—revealing where to invest, pressure, or negotiate.