"Jamaica" spent the late 1940s in the Far East and on the North America and West Indies Station. When the Korean War began in 1950 she was ordered, in cooperation with the United States Navy, to bombard North Korean troops as they advanced down the eastern coast. The ship also provided fire support during the Inchon Landing later that year. "Jamaica" was refitted late in the year and returned to Great Britain in early 1951 where she was placed in .