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) John Campbell McArthur, 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, 326th Infantry Regiment, 82d Division, from the date of its organization and during its occupancy of the Somme, Toul, Nancy, and Argonne sectors, 10 May 1918 to 19 November 1918, Colonel McArthur displayed brilliant leadership, sound tactical judgment, unremitting attention and devotion to duty, these qualities inspiring the officers and men of his command, bringing their morale to a high pitch and inciting them to a rare devotion to duty. His services as a Regimental Commander contributed in a very marked way to the successful operations of the 82d Division of the American Expeditionary Forces in France.