Fondly do we hope, fervently do we pray, that this mighty scourge of war may speedily pass away. Yet if God wills that it continues... until every drop of blood drawn with the lash shall be paid another drawn with the sword... so still it must be said that the judgments of the Lord are true and righteous altogether.
With malice toward none, with charity for all, with firmness in the right as God gives us to see the right, let us finish the work we are in, to bind up the nation's wounds, to care for him who shall have borne the battle, and for his widow and for his orphans, to do all which may achieve and cherish a just and a lasting peace among ourselves and with all nations.
Franklin D. Roosevelt
Almighty God: Our sons, pride of our nation, this day have set upon a mighty endeavor, a struggle to preserve our Republic, our religion and our civilization, and to set free a suffering humanity...
Lead them straight and true; give strength to their arms, stoutness to their hearts, steadfastness in their faith. They will need Thy blessings. Their road will be long and hard. For the enemy is strong. He may hurl back our forces. Success may not come with rushing speed, but we shall return again and again; and we know by Thy grace, and by the righteousness of our cause, our sons will triumph...
Embrace these, Father, and receive them, Thy heroic servants, into Thy kingdom. And for us at home--fathers, , children, wives, sisters, and brothers of brave men overseas, whose thoughts and prayers are ever with them--help us, Almighty God, to rededicate ourselves in renewed faith in Thee in this hour of great sacrifice... Give us strength, too--strength in our daily tasks, to redouble the contributions we make in the physical and the material support of our armed forces.
--D-Day, June 6, 1944
Read more at http://www.beliefnet.com/Faiths/Faith-Tools/Meditation/2005/01/Prayers-Of-The-Presidents.aspx#Gf4uJIKHpp2vT3VF.99