A Bernardine Sister was shown in spirit the vast desolation caused by the devil throughout the world, and at the same time she heard the Blessed Virgin telling her that it was true, hell had been let loose upon the earth; and that the time had come to pray to her as Queen of the Angels and to ask of her the assistance of the heavenly legions to fight against these deadly foes of God and of men.
"But my good Mother," she replied, "you who are so kind, could you not send them without our asking?" "No," Our Lady answered, "because prayer is one of the conditions required by God Himself in obtaining favors." Then the Blessed Virgin communicated the following prayer, bidding the Sister to have it printed and distributed:
August Queen of Heaven! Sovereign Mistress of the angels! Thou who from the beginning hast received from God the power and mission to crush the head of Satan, we humbly beseech thee to send thy holy Legions, that, under thy command and by thy power, they may pursue the evil spirits, encounter them on every side, resist their bold attacks and drive them hence into the abyss of eternal woe. Amen.
Further reading
This prayer turns to Mary and the angels for help in resisting evil. Scott Hahn’s Angels and Saints explores the biblical understanding of heavenly intercession and companionship, placing that appeal within the wider communion of the Church.
Angels and Saints: A Biblical Guide to Friendship with God’s Holy Ones by Scott Hahn (hardcover) on Amazon (paid link)