By direction of the President, under the provisions of the act of Congress approved July 9, 1918 (Bul. No. 43, W.D., 1918), Lieutenant Commander (MC) Cornelius H. Mack, United States Navy, is cited by the Commanding General, SECOND DIVISION A.E.F., for gallantry in action and a silver star may be placed upon the ribbon of the Victory Medals awarded him. Lieutenant Commander Mack distinguished himself by gallantry in action while serving as a Surgeon attached to the Sixth Regiment (Marines), 2d Division, American Expeditionary Forces, in action at Soissons, France, 18 – 19 June 1918. Lieutenant Commander Mack accompanied his battalion to the farthest limits of its advance and for fifteen hours was exposed continuously to terrific fire of machine guns and artillery which inflicted casualties of slightly more than 70 percent.