During World War II, LST-84 was assigned to the Pacific theater, earning five battle stars for participation in the following operations:
10 November 1943 - During the Gilbert Island operations, conducted salvage operations on LST-84.
17 June 1944 - During the Marianas operation, LST-84 was damaged by another US Navy ship as a result of a friendly fire incident.
21 February 1945 - During the Iwo Jima operation, machine guns of the US Army 506th Anti-Aircraft Gun Battalion, mounted on the deck of LST-84 cooperated with the 40 mm guns of the ship to shoot down a Japanese aircraft during a raid.
17 June 1945 - Following the invasion of Saipan, Admiral Spruance ordered that transports not required for immediate unloading be withdrawn from the Saipan area. In the early evening, shortly after a convoy, including LST-84, got underway it was attacked by a formation of Japanese aircraft. LST-84 was struck by a bomb and set afire. The fire raged furiously for some time but the blaze was brought under control by the crew with assistance from the . The damage was not vital and LST-84 was able to continue with the convoy.
Just prior to the end of World War II, LST-84 was refitted as a hospital ship and recommissioned Landing Ship Tank (Hospital) LST(H)-84. She continued in this role during the post-war occupation until early March 1946.
Upon her return to the United States, the ship was decommissioned on 2 March 1946 and struck from the Navy list on 31 October 1947. On 20 April 1948, she was sold to the Bethlehem Steel Co. who scrapped the ship in Seattle, Washington.