The provocation of any one of the minister, the priest, the commander-in-chief, and the heir-apparent is what is termed internal trouble. The king should get rid of such an internal enemy either by giving up his own fault or by pointing out the danger arising from an external enemy. When the priest is guilty of the gravest treason, relief should be found either by confining him or by banishing him; when the heir-apparent is so, confinement or death (nigraha), provided that there is another son of good character. From these, the case of the minister and the commander-in-chief is explained.