Repairs completed, "Montgomery" began ten months of activity which included two convoy escort voyages between San Francisco and Hawaii (8 December 1943 to 5 February 1944), defensive minelaying around Kwajalein (17 March to 4 April), convoy escort to Majuro (May 1944), and local convoy escort in the Hawaiians. "Montgomery" attacked an enemy submarine contact on 25 June 1944 without evident result. After an escort voyage to Eniwetok and return (28 June to 16 July), she sailed for Guadalcanal to prepare for the invasion of the Palaus.