Matsya Purana 240.23

240.23

abhiyojyo bhavettena śatrurviṣamamāśritaḥ.
gamye vṛkṣāvṛte deśe sthitaṃ śatruntathaiva ca .. 240.22 ..

He should march with a good force of infantry and elephants during the rainy season, of cavalry and chariots during the dewy and cold season, he should march with camels and mules during the hot weather, and with forefold forces during the vernal season A king whose infantry is strong can attack his foe with great vigour—20 22

An elephant corps can win a foe situated in a muddy surrounding, or in a woody country, and a cavalry and chariots can vanquish a foe on even land If the king be helped by a number of allies, he should respect them by presents and kindness If a king who has a strong mule and camel corps should be subdued during the rains and taken prisoner, he should still fight on as there is chance of his recovery—23 25