 Steaming to Chinhae Wan in August, she lent direct fire support to the United Nations troops and on 15 September escorted a Korean LST in a feint attack against Chang Sa Dong.When the LST broached, "Endicott" stood guard until help arrived.She continued her harassment of the enemy following the Inchon landings, cruising along the east coast of Korea and supporting the minesweeping force.