The Prayer to Saint George directly refers to the courage it took for the saint to confess his Christianity before opposing authority:
Almighty God, who gave to your servant George boldness to Confess the Name of our Savior Jesus Christ before the rulers of this world, and courage to die for this faith: Grant that we may always be ready to give a reason for the hope that is in us, and to suffer gladly for the sake of our Lord Jesus Christ; who lives and reigns with you and the Holy Spirit, one God, for ever and ever.
The same sentiment is present within the following two Prayers to Saint George:
St. George, Heroic Catholic soldier and defender of your Faith, you dared to criticize a tyrannical Emperor and were subjected to horrible torture. You could have occupied a high military position but you preferred to die for your Lord. Obtain for us the great grace of heroic Christian courage that should mark soldiers of Christ. Amen
Saint George Prayer:
O GOD, who didst grant to Saint George strength and constancy in the various torments which he sustained for our holy faith; we beseech Thee to preserve, through his intercession, our faith from wavering and doubt, so that we may serve Thee with a sincere heart faithfully unto death. Through Christ our Lord. Amen.
Prayers of Intercession to Saint George:
Faithful servant of God and invincible martyr, Saint George; favored by God with the gift of faith, and inflamed with an ardent love of Christ, thou didst fight valiantly against the dragon of pride, falsehood, and deceit. Neither pain nor torture, sword nor death could part thee from the love of Christ. I fervently implore thee for the sake of this love to help me by thy intercession to overcome the temptations that surround me, and to bear bravely the trials that oppress me, so that I may patiently carry the cross which is placed upon me; and let neither distress nor difficulties separate me from the love of Our Lord Jesus Christ. Valiant champion of the Faith, assist me in the combat against evil, that I may win the crown promised to them that persevere unto the end
The Novena to Saint George does not have a specific warrior context, but simply asks God for divine assistance and the imitation of the life of the saint:
Almighty and eternal God! With lively faith and reverently worshiping Thy divine Majesty, I prostrate myself before Thee and invoke with filial trust Thy supreme bounty and mercy. Illumine the darkness of my intellect with a ray of Thy heavenly light and inflame my heart with the fire of Thy divine love that I may contemplate the great virtues and merits of the Saint in whose honor I make this novena, and following his example imitate, like him, the life of Thy Divine Son.