 From 4 February to 1 March 1944 "Dionne" served in the Marshalls operation, escorting convoys and acting as harbor guard at Kwajalein.After an overhaul at Mare Island, California, from 9 March to 8 April she sailed to Kwajalein and Eniwetok as convoy escort, then returned to Pearl Harbor on 10 May to rehearse amphibious landings.