The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Distinguished Service Cross to Sergeant Robert R. Cook (ASN: 1386272), United States Army, for extraordinary heroism in action while serving with Company A, 131st Infantry Regiment, 33d Division, American Expeditionary Forces, at Bois-de-Chaume, France, 11 October 1918. Sergeant Cook crawled out in front of the lines some hundred yards to locate enemy snipers. While in this perilous position he fired upon and put out of action a group of enemy machine gunners, thus exposing his position and drawing enemy sniper fire. Having in his possession a number of asphyxiating grenades, which emit a dense white smoke, he hurled one of the at the sniper’s position and under cover of this improvised smoke screen walked back to the lines.