After extensive training maneuvers along the West Coast, "Colorado" returned to Pearl Harbor in April 1942. From November 1942 to September 1943 she was stationed in the South West Pacific. In November 1943, she participated in operations against the Japanese during both the Gilbert and Marshall Islands campaign and Mariana and Palau Islands campaign, and shelled Luzon and Okinawa in advance of the planned amphibious assaults there. Following the end of World War II "Colorado" participated in Operation Magic Carpet before being decommissioned in 1947. She was sold for scrap in 1957.