With the outbreak of the Korean War, "Mispillion" joined Task Force 90. During her first combat tour she provided logistic support for the huge invasion force that landed United Nations forces at Inchon on 15 September 1950, then rounded the Korean Peninsula to support the forces operating in the Wonsan area. After a brief respite on the United States west coast in the autumn of 1951, she returned in November 1951 for a second combat tour. She continued to support United Nations naval forces as they enforced a continuous blockade of the North Korean coast, rendered gunfire support to United Nations ground forces, and bombarded Communist supply areas, troop concentrations, and transportation centers.