Although the immediate crisis passed by 28 October, the ship steamed with elements of Task Group 128 (TG 128) for another three weeks as the withdrawal of Soviet missiles from Cuba was confirmed. She departed the West Indies on 2 December and arrived at Long Beach on the 15th in time to enjoy the holiday season in port. For the next ten months, "Belle Grove" conducted local operations off the West Coast. On 17 September 1963, the dock landing ship sailed from Long Beach for her fifth Far East deployment. She visited Hawaii, Yokosuka, Sasebo, and Hong Kong before anchoring in Subic Bay as standby LSD for TG 76.5 in December. A faulty boiler, however, kept her in port for repairs until 1 February 1964, when she resumed operations with 7th Fleet. "Belle Grove" participated in amphibious Exercise "Back Pack" at Taiwan and then visited Okinawa and Japan before returning to Long Beach on 6 April. In mid-July, after a period of local operations, the ship moved to Seattle, Washington, where she entered the Todd Shipyard for another modernization overhaul to repair her aging hull, piping systems, and cabling. Returning to Long Beach in mid-October, she conducted refresher training and local operations into the following spring. On 19 April 1965, "Belle Grove" headed westw for service in South Vietnam. She transported a portion of the Republic of Korea Army Tiger Division to Vietnam. The ship then supported the recent marine deployment to Da Nang by serving as a boat haven in that city's harbor. In addition, she provided repair facilities to inshore coastal vessels engaged in Operation Market Time, a series of coastal patrols designed to interdict communist waterborne logistics routes into South Vietnam. Returning home 29 November, she spent only six weeks in leave and upkeep before heading back to Vietnam. Assigned the task of establishing river patrol units in the Mekong Delta, "Belle Grove" steamed for Vung Tau, South Vietnam, on 10 January 1966. Arriving in that port on 5 February, the ship spent the next two months maintaining LCM landing craft, PBR river patrol boats, and UH-1B "Huey" helicopters in the Rung Sat Special Zone. She also served as a command center that coordinated Navy riverine patrols and Army helicopter sweeps against Viet Cong (VC) forces as part of Operation Jackstay. Those attacks, carried out in conjunction with B-52 strikes, lasted from 26 March to 4 April.