{ Fighting is ordained for you, being something you dislike; but perhaps you dislike something that is good for you, and perhaps you like something that is bad for you; and Allah knows but you do not know } Al-baqara 216

It rests unanimous that jihad is a collective obligation on the ummah of Muhammad, although whoever among the Muslims undertake it, the others are no longer obliged, except if the enemy descends into Islamic territory, then it becomes an individual obligation.