In February, she escorted carriers during attacks on the Japanese island of Honshu to disrupt Japanese air forces that might interfere with the planned invasion of Iwo Jima in the Bonin Islands. Fifth Fleet had re-assumed command of the fast carrier task force by this point, and "North Carolina" was now part of TG 58.4. The fleet sortied from Ulithi on 10 February, and after conducting training exercises off Tinian on the 12th, refueled at sea on 14 February and continued on north to launch strikes on the Tokyo area two days later. The raids continued through 17 February and the next day, the fleet withdrew to refuel and TG 58.4 was sent to hit other islands in the Bonin chain to further isolate Iwo Jima. During the preparatory bombardment for that attack, "North Carolina", "Washington", and the heavy cruiser were detached from the task group to reinforce TF 54, the assault force for the invasion; she remained on station during the marine assault and provided fire support as they fought their way across the island through 22 February. The next day, the carrier groups reassembled and refueled on 24 February for further operations against the Japanese mainland.