Arthashastra
एवं विजिगीषुर् अमित्र भूमिं लब्ध्वा मध्यमं लिप्सेत, तत् सिद्धाव् उदासीनम् ॥
Having thus seized the territory of the enemy close to his country, the conqueror should direct his attention to that of the madhyama king; this being taken, he should catch hold of that of the neutral king.
english translation
evaM vijigISur amitra bhUmiM labdhvA madhyamaM lipseta, tat siddhAv udAsInam ॥
hk transliteration by Sanscript