Assigned to Task Element 90.32, "LST-857" arrived off Inchon on 15 September while a heavy air-sea bombardment pounded enemy shore positions. Late that afternoon, she closed "Red Beach" under heavy mortar and machine gun fire to take part in landings which were designed to spearhead an Allied offensive northward. Despite concentrated enemy fire, she debarked assault troops and unloaded vital supplies and equipment. In addition she provided counter-battery fire and embarked battle casualties for emergency treatment. For daring bravery and heroic performance of duty on "Red Beach", the aggressive and intrepid tank landing ships, including "LST-857", received the Navy Unit Commendation. "LST-857" completed unloading and departed the beach early on 16 September. She returned to Sasebo, Japan, on 19 September.