If the enemy, helped by his friend, shuts himself in an impregnable fort, then his neighbouring enemies may be employed to lay waste his territory. If he attempts to defend his territory by his army, that army may be annihilated. If the enemy and his ally cannot be separated, then each of these may be openly asked to come to an agreement with the conqueror to seize the territory of the other. Then they will, of course, send such of their messengers as are termed friends and recipients of salaries from two states to each other with information: "This king (the conqueror), allied with my army, desires to seize thy territory." Then one of them may, with enragement and suspicion, act as before (i.e., fall upon the conqueror or the friend).