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 Major General Robert Riis Ploger (ASN: 0-21760), United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility as Commanding General, Army Engineer Command, Vietnam, in the Republic of Vietnam, during the period from September 1965 to August 1967.