watch for a breach in the defence of the powerful enemy

अणुनापि प्रवेश्यारिं छिद्रेण बलवत्तरम्। निःश्शेषं मज्जयेद्राष्ट्रं यानपात्रमिवोदकम्॥ ईन्द् ष्प्र् ४६ कामान्धकीयनिति

aṇunāpi praveśyāriṁ chidreṇa balavattaram| niḥśśeṣaṁ majjayedrāṣṭraṁ yānapātramivodakam|| īnd ṣpr 46 kāmāndhakīyaniti

An ever watchful ruler should keenly watch for a breach in the defence of the powerful enemy even though that breach is of the size of an atom. He should ensure infiltration through that breach and ensure that the enemy is sunk completely like a leaking boat caught in water