this is practice for real life. most of these boys and a lot of the girls will spend their first years of adulthood serving in the korean adult army, just like their parents and grandparents before them. what do you like about this game? killing the enemy. reporter: who s the enemy? americans. this hatred of americans stem fred from the korean war. america that started the war that killed millions of civilians and divided the korean peninsula. who do you want to fight? the fight against americans. reporter: what do they teach you about americans in school? they forcefully invaded us and slaughtered our people and buried them alive and killed them. reporter: so they teach you that the americans are the enmany i and you need to shoot them and fight them?