Arthashastra
धान्वन वन निम्न स्थल योधिनां खनक आकाश दिवा रात्रि योधिनां च पुरुषाणां नादेय पार्वत आनूप सारसानां च हस्तिनाम् अश्वानां च यथा स्वम् इष्टा युद्ध भूमयः कालाश् च ॥
For men who are trained to fight in desert tracts, forests, valleys, or plains, and for those who are trained to fight from ditches or heights, during the day or night, and for elephants which are bred in countries with rivers, mountains, marshy lands, or lakes, as well as for horses, such battlefields as they would find suitable (are to be secured).
english translation
dhAnvana vana nimna sthala yodhinAM khanaka AkAza divA rAtri yodhinAM ca puruSANAM nAdeya pArvata AnUpa sArasAnAM ca hastinAm azvAnAM ca yathA svam iSTA yuddha bhUmayaH kAlAz ca ॥
hk transliteration by Sanscript