If the enemy fights deceitfully, he should be paid in his own coin. If, however, he fights fairly, he should be resisted with fair means.
स चेन्निकृत्या युद्ध्येत निकृत्या प्रतियोधयेत्। अथ चेद् धर्मतो युद्ध्येद् धर्मेणैव निवारयेत्॥