After the Iwo Jima operation, she returned to Ulithi to join Task Force 54 (TF 54), spending four hectic days replenishing stores, ammunition, and fuel in preparation for the next operation: Okinawa, at the end of the chain of the Japanese home islands. On Palm Sunday, 25 March, "Tuscaloosa"s main and secondary batteries opened fire on shore targets pinpointed by aerial reconnaissance. Time considerations only allowed a six-day respite in the middle of the arduous campaign for replenishment purposes, "Tuscaloosa" stood on duty for the entire operation.