A king pretending to be the enemy's chief friend or ally, may make the friendship closer with the besieged, and send a messenger to say: "This is thy weak point; these are thy internal enemies; that is the weak point of the besieger; and this person (who, deserting the conqueror, is now coming to thee) is thy partisan." When this partisan is returning with another messenger from the enemy, the conqueror should catch hold of him and, having published the partisan's guilt, should banish him, and retire from the siege operations. Then the pretending friend may tell the besieged: "Come out to help me, or let us combine and strike the besieger." Accordingly, when the enemy comes out, he may be hemmed between the two forces (the conqueror's force and the pretending friend's force) and killed or captured alive to distribute his territory (between the conqueror and the friend). His capital city may be razed to the ground; and the flower of his army made to come out and destroyed.