アッツ島
"Gilmore" conducted her initial training in San Diego, California. After this initial training period she escorted troopships from San Francisco, California to Pearl Harbor from 28 June to 8 July 1943. Her next mission would be escorting the submarine tender to Attu Island on 20 September from San Francisco. Sailing as part of the 14 Destroyer Escort Division Pacific, she then served as the escort ship for the U.S. Coast and Geodetic Survey ship from 18 to 29 October. For the next three months, "Gilmore" would serve as an escort between various Alaskan ports, until 20 January 1944. She then participated in air-sea rescue operations off the coast of Attu Island for the 4th Fleet Air Wing until 1 February.