For conspicuous gallantry and intrepidity at the risk of his life above and beyond the call of duty while serving with Marine Medium Helicopter Squadron 263 during operations against enemy forces. Participating in a helicopter rescue mission to extract elements of a platoon which had inadvertently entered a minefield while attacking enemy positions, Pfc. Clausen skillfully guided the helicopter pilot to a landing in an area cleared by one of several mine explosions. With 11 marines wounded, and one dead, and the remaining eight marines holding their positions for fear of detonating other mines, Pfc. Clausen quickly leaped from the helicopter and, in the face of enemy fire, moved across the extremely hazardous mineladen area to assist in carrying casualties to the waiting helicopter and in placing them aboard. Despite the ever-present threat of further mine explosions, he continued his valiant efforts, leaving the comparatively safe area of the helicopter on six separate occasions to carry out his rescue efforts. On one occasion while he was carrying one of the wounded, another mine detonated, killing a corpsman and wounding three other men. Only when he was certain that all marines were safely aboard did he signal the pilot to lift the helicopter. By the courageous, determined, and inspiring efforts in the face of the utmost danger, Pfc. Clausen upheld the highest traditions of the Marine Corps and of the U.S. Naval Service.
The White House (East Ballroom), presented by Pres. Richard M. Nixon