USS Implicit (AM-455/MSO-455) was an Agile-class minesweeper acquired by the U.S. Navy for the task of removing mines that had been placed in the water to prevent the safe passage of ships.

During this deployment, Implicit operated with Japanese ships, Nationalist Chinese minesweepers, and with regular units of the U.S. 7th Fleet on their daily mission of maintaining peace and security in the area.

She steamed out of Long Beach 8 January 1960 and during six months in the western Pacific Ocean took part in mine warfare exercises with 7th Fleet ships in the Philippines and off Okinawa.

Training operations and mine countermeasures drill were carried out until August 1961, when the veteran minecraft took part in joint American-Canadian mine-sweeping exercises off British Columbia.

Sailing 2 January 1962 for this embattled country, Implicit first participated in SEATO maneuvers and then moved to various ports in South Vietnam to assist in training officers and men.

Following her second SEATO exercise in the Pacific, Implicit resumed to Long Beach 28 July 1964 for a yard overhaul and readiness tactics and training along the coast of California.