This is the 3974th most frequent Korean word.
위해를
"위해를" means "harm" or "injury" in English.
Here, '위해를' refers to 'for the benefit' or 'on behalf' in the context of serving the nation.
그는 나라의 위해를 무릅쓰고 싸웠습니다.
He fought risking himself for the sake of the nation.
In this sentence, '위해를' implies doing something 'for the purpose of' or 'for the benefit of' the environment.
환경을 위해를 지키는 것은 우리 모두의 책임입니다.
Protecting the environment is the responsibility of us all.
'위해를' is used here to signify 'for the welfare' or 'in consideration of' the children.