Reaching Pearl Harbor on 17 February, Trousdale spent the next 25 days unloading cargo; making minor repairs; and waiting for orders.

After commencing unloading that evening, she temporarily suspended operations as Japanese "kamikazes" flew in from the north to attempt to crash American ships engaged in the landings.

Hampered by kamikazes and bad weather conditions with heavy seas and high winds, the ship lay off the beach for the next six days, engaged in nearly continuous unloading operations.

On 18 May, the ship weighed anchor and steamed for Tulagi, where she loaded landing craft and set out, via Eniwetok and Saipan, for Guam, arriving there on 7 June.

Arriving at Tinian on 27 July, the ship commenced offloading immediately and was working hard at the task on 5 August when an American B-29 bomber exploded an atomic bomb over Hiroshima.

The attack cargo ship spent a week loading Army equipment for occupation forces and, in company with three other AKA's, sailed on 11 September for Korea.

The AKA's encountered difficulties posed by the 20- to 30-foot tidal range which permitted larger landing craft to discharge cargo only at specific times.

Upon her arrival in the vicinity of the British Crown Colony of Hong Kong, the ship prepared to embark Chinese soldiers for passage to North China.

Commencing the loading on 24 October, the operation was completed the next day, and the ship sailed with her human cargo for Chinwangtao at the base of the Great Wall of China.

On 6 March, the attack cargo ship departed New York City on her last voyage as a United States Navy man-of-war and arrived at Norfolk on the following day.

Trousdale was decommissioned on 29 April 1946, returned to the War Shipping Board of the United States Maritime Commission on the 30th, assigned to the National Defense Reserve Fleet, and berthed in the James River.