To the chosen Voivode, victorious, for having got rid of the evil ones, let us sing thanksgiving to Thy servants to the Mother of God: but as having an invincible power, free us from all troubles, let us call to Thee: Rejoice Bride Not the bride.
History:
This kontakion to the Mother of God was compiled in honor of the deliverance of Constantinople in 626 from the invasion of barbarians, when Patriarch Sergius I of Constantinople walked around the city walls with an icon of the Mother of God and the danger was averted.
Video notes of the kontakion of the Vzbranaya Voivode