Indeed, their enlistment contract requires only that applicants give truthful certification of their understanding and of what they have revealed and that they give their sworn oath of loyaltyandobedience.
There is an older book, 'Battling the Inner Dummy, ' that offers an interesting concept -- 'controlled trauma to induce transformation' and offers this illustration: 'Boot camp ... can be thought of as an example of controlled trauma that is designed to foster traits like loyaltyandobedience.