to resupply United Nations naval forces in early February 1953. The end of July 1953 brought an uneasy truce, and in August Rainier headed back to the United States. In November, however, she returned to the Far East on her first, peacetime, 6-month WestPac deployment. Through 1955, her annual deployments included shuttle runs between Japanese ports and 7th Fleet replenishment areas in waters off Japan and Korea. In 1956, her operating schedule was expanded into the 1960s, including operations in the Philippine area out of Subic Bay. Vietnam War In 1964, as the war in South Vietnam expanded, Subic Bay became the focal point of Rainier’s 7th Fleet support activities. There when the Gulf of Tonkin Incident occurred, 4–5 August, she put to sea immediately and steamed to the gulf to rearm carriers conducting strikes on North Vietnamese bases. For the next months, Rainier operated between Subic Bay and replenishment areas off Vietnam. In late October, she sailed for Japan and in December, she arrived back at her homeport, Concord, California In the late spring of 1965, she resumed 7th Fleet operations and by January 1966, had transferred at sea almost 12,000 tons of ammunition, 83 tons of freight, and 11,500 pounds of mail. In February, she returned to Concord. In April, she moved to San Francisco for overhaul and, in August, began refresher training with new equipment aboard which increased her underway replenishment capabilities. In February 1967, Rainier resumed her annual deployments to provide underway logistic support to the 7th Fleet. By 16 September, the date of her last at-sea munitions transfer on that tour, she had transferred 13,000 tons during 204 underway replenishments. Departing Subic Bay on 25 September for her homeport, Rainier touched at Yokosuka, and Pearl Harbor before arriving at Concord on 25 October. Throughout the remainder of 1967 and the first half of 1968, Rainier conducted independent underway replenishment exercises and participated in fleet exercises along the southern California coast. On 29 June, she departed Concord for the western Pacific, arriving at Subic Bay on 21 July. Following a week in port, Rainier got underway for her first replenishment cycle. It was during this first cycle that she was awarded the Battle Efficiency "E" for fiscal year 1968. On 21 November, during her sixth line cycle, Rainier established her best underway replenishment record by transferring 826 tons to in a 5-hour period. By the end