The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pride in presenting the Distinguished Service Cross (Posthumously) to Captain (Infantry) Oskar E. Youngdahl, United States Army, for extraordinary heroism in action while serving with 23d Infantry Regiment, 2d Division, American Expeditionary Forces, near St. Etienne-a-Arnes, France, 6 October 1918. Armed with a rifle, Captain Youngdahl went through a heavy machine-gun fire alone to a position from which he could fire upon German machine-gunners who were pouring a deadly fire into the flank of his company. He killed one of the gunners and captured four others, but was severely wounded himself. He stayed with his company until it had carried its objective, but died in the hospital of his wounds two days later.