"Colonial" participated in amphibious training out of Norfolk, conducting local, east coast, and Caribbean operations, and voyaging from Cuba and Puerto Rico as far north as Newfoundland until 15 August 1950, when she cleared Norfolk for Far Eastern duty. Calling at San Diego en route to Kobe, "Colonial" landed men and tanks of the 1st Marine Division at Inchon in September, and troops and equipment at Wonsan and Iwon in December. "Colonial" was one of the last ships to leave Hungnam in the evacuation of that area. She acted as "mother ship" for minesweepers on the Korean east coast for a month during this tour, returning to San Diego, her new home port, 27 August 1951. Here she was overhauled and had underway training before returning to Japan and Korea for duty from 17 January to 4 November 1952. During this tour she supported minesweepers working in Wonsan Harbor, and took part in amphibious training.