In the sense of the prayer to St. Michael the Archangel, I get it
(which prayer I think was on a months-ago Q post).
Yes, I think it was.
Very good practice, to pray for God’s help and protection before battle.
(Or every morning upon awaking, too!)
Offer nostras preces in conspectu Altissimi, ut cito anticipent nos misericordiae Domini, et apprehendas draconem, serpentem antiquum, qui est diabolus et satanas, ac ligatum mittas in abyssum, ut non seducat amplius gentes.
In the Name of the Father, and of the Son, and of the Holy Ghost.