When one's own side has vecome strong and the side of the enemy has become weak, it is them, O son of Kunti, that the king should fight against the enemy and try to acquire victory.
थदा स्वपक्षो बलवान् परपक्षस्तथाऽबलः। विगृह्य शत्रून् कौन्तेय जेयः क्षितिपतिस्तदा॥