Catholic militancy is in the first place about the interior life and that our real adversaries are not men who are “enemies of the Church,” but principalities and powers. This can also be taken a step further. Even in the external order where Catholic Action comes into play, the greatest opposition will come from the dark powers, whether through temptation or something more extraordinary like oppression and obsession. - Fr. Angelo Mary: Know Thy Enemy
Blood of Christ, Victor over demons, save us.