coast of South Vietnam, maintaining American presence in that area. Heavy pressure from Communist Viet Cong forces inside South Vietnam had brought about a commitment of force there as the United States sought to bolster the American-backed regime. After visiting Subic Bay for a week of upkeep and conducting a port visit to Hong Kong, Vammen returned to her station in the Gulf of Siam. Originally, the ship's schedule had called for the ship to visit Japan and return to Pearl Harbor after visiting Hong Kong, but, as Vammens commanding officer reported "... the efforts of Vammen and the other ex-NRT ships on the South Vietnam training mission were apparently of such value that it was decided to retain Escort Division 72 on the mission through mid-May." There were further changes of plan afoot for Vammen, as was evidenced during the second deployment in the Gulf of Siam. On 13 May, Vammen and Charles E. Brannon were diverted from their training duties under Task Force 72 and were ordered to report for duty to commander, Task Group 76.5 (TG 76.5). Complying, the two destroyer escorts subsequently screened , , and while that group took a Marine Corps expeditionary force to Bangkok, Thailand. The 3rd Battalion, 9th Marines, embarked in the amphibious group were sent to Thailand in an effort to provide the friendly regime with troops to deter any Communist moves across the Mekong River. Following that operation, Vammen and her sistership escorted TG 76.5 back to Subic Bay, arriving there on 23 May. Vammen subsequently visited Yokosuka, Japan, and participated in Exercise Powerdive, with 7th Fleet units in the Japan area, before she returned via Midway Island to her home port, Pearl Harbor, on 18 June. At Pearl from 18 June to 11 July, Vammen enjoyed the longest consecutive in-port period since February that year, undergoing much-needed repairs and maintenance. On 11 July, Vammen, in company with , , and Wiseman, sailed for the west coast of the United States. After her arrival at Long Beach on 17 July, Vammen was de-commissioned on 1 August 1962, resuming her role as an NRT ship. Naval Reserve Training Ship (NRT) 1962-1971 For the next seven years, Vammen continued her duties as an 11th Naval District NRT ship, based at Long Beach, and operating primarily in the Long Beach-Los Angeles-San Pedro area. During that time, she ranged as far north as British