i understand that there's nothing you want to do to get what

i understand that there's nothing you want to do to get what you want.
这句话出自动画片,请问如何翻译,
词句出现在对话中，原场景是男孩A说要以牺牲当地居民为代价对抗敌人，男孩B就进行反对，如下：
男孩A：Because they don't understand the demands of a war.Not like you and I do.
男孩B：I do understand.I understand that there's nothing you want to do to get what you want.
请结合语境回答。