She took part in the landings on Green Island on 15 February 1944 and on Emirau Island on 20 March. "Eaton" sailed 4 May 1944 for the Marshalls, arriving at Majuro on the 7th. Between 29 May and 2 June, she joined "Greiner" (DE-37) and "Sanders" (DE-40) in reconnaissance and bombardment of Kusaie Island in the eastern Carolines. On 11 June, she left Kwajalein for the invasion of Saipan, which began four days later. "Eaton" provided fire support, including harassing and illumination fire, against Saipan and Tinian and captured three Japanese aviators from a raft. On 12 August she sailed from Saipan for overhaul at Mare Island.