This, from the pope’s prayer at Ground Zero, could be easily adapted and adopted for all those in positions to influence this war:

God of peace, bring your peace to our violent world: peace in the hearts of all men and women and peace among the nations of the earth. Turn to your way of love those whose hearts and minds are consumed with hatred. God of understanding, overwhelmed by the magnitude of this tragedy, we seek your light and guidance as we confront such terrible events. Grant that those whose lives were spared may live so that the lives lost here may not have been lost in vain. Comfort and console us, strengthen us in hope, and give us the wisdom and courage to work tirelessly for a world where true peace and love reign among nations and in the hearts of all.