The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Army Distinguished Service Medal to Colonel (Infantry) Russell Creamer Langdon, United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility during World War I. As Commanding Officer of the 127th Infantry Regiment, 32d Division, Colonel Langdon demonstrated personal courage, marked tactical ability, and military leadership of a high order. The brilliant success he achieved in the capture of Fismes during the Aisne-Marne offensive, and in the taking of Juvigny and the subsequent advance to Terny-Sorny during the Oise-Aisne offensive, was repeated later during the operations of the Meuse-Argonne, when he was given the important task of conducting the attack on La Cote Dame Marie.