Kwajalein Atoll, in the Marshalls, was taken at the end of January 1944. The escort carrier named for that battle had been Bucareli Bay. Kaiser at Vancouver launched her on 4 May 1944. Mrs. Rudolf L. Johnson sponsored her. The Navy acquired her on 7 June, and Commander R. C. Warrack commissioned her the same day.
After shakedown she cleared San Pedro on 19 July with passengers, fuel, and planes for Espiritu Santo, arriving on 3 August. Four days later she sailed to carry aircraft to Guam and to pick up salvaged Japanese equipment for study in the United States. She repaired at San Diego and got underway on 7 October as a replenishment carrier. She loaded combat-ready aircraft at Manus and on 5 November sailed for Eniwetok to replenish the carriers of Task Force 38 before the raids on Manila and the Visayas. From Ulithi she kept those carriers supplied through the fighting in the Philippines. In January 1945 her replacement aircraft went to Task Force 38 for strikes on Formosa and the China coast. She returned to San Diego on 23 February for overhaul.
Operations resumed on 9 March. From March to August she made three cruises from Pearl Harbor to the western Pacific, keeping the carrier air groups filled for the raids on the home islands. When the fighting ended on 14 August 1945 she was assigned to bring veterans home. Four cruises followed. She reached San Pedro on 2 February 1946 from the last of them. On 23 April she cleared San Pablo Bay for Mukilteo, Washington, arriving three days later, and she was decommissioned at Tacoma on 16 August 1946. She received two battle stars. Her name was struck on 1 April 1960, and she was scrapped in Japan the next year.