(AM-300: dp. 625; l. 184'6"; b. 33'; dr. 9'9"; s. 15 k.; cpl. 104; a. 1 3", 2 40mm., 6 20mm., 2 dct., 2 dcp., 1 dcp. (hh.) ; cl. Admirable)
Serene (AM-300) was laid down on 8 August 1943 by the Winslow Marine Railway and Shipbuilding Co., Winslow, Wash.; launched on 31 October 1943; sponsored by Miss Maxine Noblett; and commissioned on 24 June 1944, Lt. James E. Galloway in command.
Following shakedown off southern California, Serene sailed for Pearl Harbor on 29 August. After arriving on 6 September, she performed ocean escort duty on convoy runs from Hawaii to Eniwetok and San Francisco into December; then participated in fleet and type exercises until mid-January 1945. On 22 January, she got underway to escort Tractor Group Able to the Marianas to prepare for the Iwo Jima campaign.
Screening Terror, flagship of TG 52.3, Serene arrived in the Volcano Islands area on 16 February and commenced sweeping operations in an area some 15 miles south of Iwo Jima. On the 17th, her division, MinDiv 36, moved closer to the target area. Through the 18th, they cleared the approaches to the landing beaches. As the troops landed on the 19th, the smaller YMS's were fueled; and, from the 20th to the 28th, the minesweepers conducted antisubmarine patrols.
Returning to the Marianas on 5 March, Serene departed again on the 7th and headed for Ulithi, the staging area for Operation "Iceberg," the invasion of the Ryukyus.
Departing Ulithi on 19 March, she swept enemy minefields in the Kerama Retto on the 25th and 26th; then, after that anchorage was secured, participated in the sweeping operations preceding the main assault on Okinawa. On the 31st, she took up duty as a marker vessel and antisubmarine patrol ship off Kerama Retto. After the 1 April landings on the Hagushi beaches, she continued her patrol duties and provided assistance to damaged shipping. On the 6th, she picked up survivors of the SS Hobbs Victory. On the 7th, she resumed sweeping operations in the sea lanes in the Kerama Retto-Okinawa area; and, at mid-month, cleared the approaches to the assault beaches on le Shima. On 16 April, she returned to Kerama Retto for availability; then resumed patrol and sweeping duties which she continued until sailing for Ulithi on 4 May.
On 28 May, Serene returned to the Ryukyus in the screen of convoy UOK 16. Early in June, she shifted from Nakagusuku Wan (Buckner Bay) to Kerama Retto, off which she performed patrol duty until the 7tlu A week later, she resumed sweeping operations which she continued in the Mayako Jima area until the 23d. In early July, she escorted an LST convoy to Leyte, where she was undergoing overhaul when hostilities ended in mid-August.
Then assigned to postwar minesweeping operations, Serene swept mines in the Yellow Sea, off Korea, during late August and early September. On 7 September, her group became the Sasebo Sweep Group; and, on the 9th, Serene commenced operations to clear the entrance to Nagasaki. For the remainder of the month, she continued sweeping operations off the west coast of Kyushu. In October, she assisted in clearing the eastern end of Tsushima Strait; and, in early November, she returned to the waters off Korea to operate off the east coast in the Sea of Japan. At mid-month, she resumed operations in Tsushima Strait to clear the shallow waters at the western end. On 12 December, she sailed for home.
Designated for inactivation, Serene arrived at Galveston, Tex., on 26 January 1946. On 8 May, she shifted to Orange where she was decommissioned on 19 July and berthed with the Texas Group, Atlantic Reserve Fleet. Reclassified MSF-300 on 7 February 1955, she remained in reserve until July 1963. Then converted to a patrol and escort craft, she was transferred, under the Military Assistance Program, to the Republic of Vietnam on 24 January 1964. Her name was struck from the Navy list on 1 August 1964.
Serene earned 3 battle stars during World War II and 3 during postwar minesweeping operations.