30 November 1944–8 May 1959 Joining the Pacific Fleet, Columbus reached Tsingtao, China, on 13 January 1946 for occupation duty. On 1 April, she helped to sink 24 Japanese submarines, prizes of war, and next day sailed for San Pedro, California. For the remainder of the year, she operated in west coast waters, then made a second Far Eastern cruise from 15 January to 12 June 1947.