They were used to simple rules followed by society, knowing that killing is bad, your not allowed to drink alcohol under 21, and simply how to stop at a stoplight. Your morality is twisted and turned by the effects of war as killing once may have been bad in society but when you're faced against the dilemma that it's either “kill or be killed” the soldiers thoughts and emotions change drastically in that moment and forever. In society it's a rare moment to even come close to dying on a daily basis, whereas these soldiers are faced with almost dying every day instantaneously, they change because the set of rules they may have been used to following have changed. Killing may have been bad but now they are forced to survive without even taking a second thought to as if what they are doing is bad. If they had the moment to think about it in their thoughts they would be thinking about how the people they are killing may have families, be somebody's son/daughter, somebody's brother, somebody's lover,etc. If they were not forced to do this their morality and emotions wouldn't let most of them be able to do
They were used to simple rules followed by society, knowing that killing is bad, your not allowed to drink alcohol under 21, and simply how to stop at a stoplight. Your morality is twisted and turned by the effects of war as killing once may have been bad in society but when you're faced against the dilemma that it's either “kill or be killed” the soldiers thoughts and emotions change drastically in that moment and forever. In society it's a rare moment to even come close to dying on a daily basis, whereas these soldiers are faced with almost dying every day instantaneously, they change because the set of rules they may have been used to following have changed. Killing may have been bad but now they are forced to survive without even taking a second thought to as if what they are doing is bad. If they had the moment to think about it in their thoughts they would be thinking about how the people they are killing may have families, be somebody's son/daughter, somebody's brother, somebody's lover,etc. If they were not forced to do this their morality and emotions wouldn't let most of them be able to do