"Haraden" arrived Pearl Harbor 8 March 1944, and after a brief period of upkeep steamed back to the Marshalls with two fleet oilers carrying vital fuel. Arriving 1 April, she engaged in various duties in support of the operations there, including fire support and anti-submarine patrol, until departing for Pearl Harbor with escort carrier on 18 May. At Pearl Harbor "Haraden" was reassigned to escort carriers and and repair ship for the next major operation in the epic sweep through the Pacific—the Mariana Islands campaign.