As commander in chief of the Armed Forces of the United States of America, I congratulate you on the brilliant victory at Stalingrad of the armies under your supreme command. The 162 days of epic battle for the city which has forever honored your name and the decisive result which all Americans are celebrating today will remain one of the proudest chapters in this war of the peoples united against Nazism and its emulators.
The commanders and fighters of your armies at the front and the men and women who have supported them in factory and field have combined not only to cover with glory their country's arms, but to inspire by their example fresh determination among all the United Nations to bend every energy to bring about the final defeat and unconditional surrender of the common enemy.
Franklin D. Roosevelt, Congratulations to Marshal Stalin on the Russian Victory at Stalingrad Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/209576