अतः सैन्यानां व्यूहशेषमावापः कार्यः ॥ कZ_१०.५.२० ॥
ataḥ sainyānāṃ vyūhaśeṣamāvāpaḥ kāryaḥ
Therefore, the remaining deficiency of the battle-array of the troops should be made up by ‘filling in’ (āvāpa).
A controlled reinforcement or redistribution to remove gaps/deficits so the planned formation remains coherent.