U.S. Navy Medal of Honor citation of Sergeant Matej Kocak, USMC (as printed in the official publication "Medal of Honor, 1861-1949, The Navy", page 119):

"For extraordinary heroism while serving with the Sixty-sixth Company, Fifth Regiment, Second Division, in action in the Viller-Cottertes section, south of Soissons, France, 18 July 1918. When a hidden machine-gun nest halted the advance of his battalion, Sergeant Kocak went forward alone unprotected by covering fire and worked his way in between the German positions in the face of heavy enemy fire. Rushing the enemy positions with his bayonet, he drove off his crew. Later the same day, Sergeant Kocak organized French colonial soldiers who had become separated from their company and led them in an attack on another machine-gun nest which was also put out of action."

U.S. Army Medal of Honor citation of Sergeant Matej Kocak, USMC (as printed in the official publication "Medal of Honor Recipients, 1863-1978 ", page 448):

"When the advance of his battalion was checked by a hidden machinegun nest, he went forward alone, unprotected by covering fire from his own men, and worked in between the German positions in the face of fire from enemy covering detachments. Locating the machinegun nest, he rushed it and with his bayonet drove off the crew. Shortly after this he organized 25 French colonial soldiers who had become separated from their company and led them in attacking another machinegun nest, which was also put out of action."