time until February 1948, she operated along the western coast of the United States, visiting ports in Washington, Oregon, and California. Late in February 1948, she sailed to Pearl Harbor and thence proceeded to the Aleutian Islands where she operated until late August 1948. In September 1948, she steamed to Tsingtao, China, making one round-trip run between Tsingtao and Yokosuka before departing the former port, bound for Oahu on 29 November 1948. The tug entered port at Pearl Harbor on 27 December 1948 and remained there until 7 January 1949 at which time she got underway to return to the west coast. She spent February and March 1949 engaged in normal west coast operations and in April 1949 returned to the Aleutians where she served until late August 1949. The tug resumed duty along the California coast upon her arrival in San Francisco on 27 August 1949. In December, she made a round-trip voyage to Pearl Harbor and back to the west coast. On 9 February 1950, Yuma departed San Diego, California, for Oahu and arrived in Pearl Harbor ten days later. After almost two months of duty at Pearl Harbor, the tugboat got underway on 10 April 1950 for a mission in the Pacific Trust Territories. Based at Guam, she performed duty at Taongi Atoll and Kusaie Island in the Carolines, at Koror in the Palaus, and at Saipan. On 9 July 1950, she departed Guam and, four days later, arrived in Yokosuka, Japan. Korean War operations That move, however, did not presage her early participation in the war which had broken out in Korea just two weeks earlier for, after visits to Sasebo in Japan and to Subic Bay in the Philippines, she returned to Guam on 2 August 1950 and resumed duty in the Pacific Trust Territories for another year. During that 12-month period, she visited Japanese ports and, no doubt, performed missions in distant support for the United Nations forces fighting in Korea. She also made several voyages to Pearl Harbor and operated at various islands—notably Kwajalein, Eniwetok, and Guam in the Trust Territories. In September 1951, she returned to Japan, arriving at Sasebo on 17 September 1951. With that arrival, Yuma began her seven months of duty in the combat zone. She made numerous voyages between Japanese ports and Wonsan, Korea, in support of the troops and ships fighting in and around Korea. On 10