यातव्यसंहितो वा तिष्ठेत्दूष्यामित्राटवीदण्डं वास्मै दद्यात् ॥ कZ_०७.७.२६ ॥
yātavyasaṃhito vā tiṣṭhetdūṣyāmitrāṭavīdaṇḍaṃ vāsmai dadyāt
Or he should remain prepared with the campaign arrangement; he may also supply him with a troublesome forest-force to harass the enemy.
As an irregular/proxy force to trouble or harass the enemy, reducing direct costs to the main army.
To maintain leverage and to pivot quickly if the situation shifts from negotiation to action.