The purpose of boot camp is to instill in recruits certain skills that
prepare them for the war, but also to
immerse them in a context similar to that of combat, so that they will become used to it more easily. This combination of learning and suffering prepares them to the harsh conditions of war, where having automatic habits—which might initially seem too strict or arbitrary—can save one’s life in moments of stress, in which the mind is not capable of thinking rationally. This forces the Marines to trust in their body’s reflexes, as well as in the validity of their superiors’ orders.