For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty while serving with the 2d Battalion, 7th Marines, 1st Marine Division, in action against enemy Japanese forces on Peleliu, Palau Islands, 18 September 1944. Shortly after his leader ordered a withdrawal upon discovering that his squad was partly cut off from their company as a result of the rapid advance along an exposed ridge during an aggressive attack on the strongly entrenched enemy, Pfc. Roan and his companions were suddenly engaged in a furious exchange of hand grenades by Japanese forces emplaced in a cave on higher ground and to the rear of the squad. Seeking protection with four other marines in a depression in the rocky, broken terrain, Pfc. Roan was wounded by an enemy grenade which fell close to their position and, immediately realizing the imminent peril to his comrades when another grenade landed in the midst of the group, unhesitatingly flung himself upon it, covering it with his body and absorbing the full impact of the explosion. By his prompt action and selfless conduct in the face of almost certain death, he saved the lives of four men. His great personal valor reflects the highest credit upon himself and the U.S. Naval Service. He gallantly gave his life for his comrades.