The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pride in presenting a Bronze Oak Leaf Cluster in lieu of a Second Award of the Distinguished Service Cross (Posthumously) to Second Lieutenant (Air Service) Frank Luke, Jr., United States Army Air Service, for extraordinary heroism in action while serving with 27th Aero Squadron, 1st Pursuit Group, U.S. Army Air Service, A.E.F., near Etain, France, 18 September 1918. Immediately after destroying two enemy observation balloons, Lieutenant Luke was attacked by a large formation of German planes, Fokker type. He turned to attack two, which were directly behind him, and shot them down. Sighting an enemy biplane, although his gasoline was nearly gone, he attacked and destroyed this machine also.