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 (Corps of Engineers) Warren Thomas Hannum, 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 a member of the Training Section, General Staff, Colonel Hannum efficiently supervised the technical and tactical training of engineer, gas, and tank troops and the operation of the schools for those services. In the performance of his manifold duties he displayed military attainments of a high order, rendering service of importance to the American Expeditionary Forces.